Tag Archives: China

Rich world’s demands fell poorer world’s forests

The tropical forests maintain global climate and nurture the riches of nature. The rich world’s demands are destroying them.

LONDON, 9 April, 2021 − The world’s great ecosystems − moderators of climate, nurseries for evolution − are still being destroyed in the service of global trade, to meet the rich world’s demands. Once again, researchers have confirmed that the wealthy nations are in effect ploughing savanna and felling tropical forests at a distance.

In the first 15 years of this century, the growing demand from the well-heeled for chocolate, rubber, cotton, soy, beef and exotic timber has meant that poorer nations have actually increased their levels of deforestation.

In effect, every human in the G7 nations − Canada, France, Germany, Italy, Japan, the UK and the US − is responsible for the loss of at least four trees a year, mostly in the developing world.

And in a separate study in another journal, another team of scientists has examined satellite data to confirm that between 1985 and 2018, humans cleared or altered 268 million hectares of natural ecosystem on the continent of South America. This is 2.68 million sq kilometres: an area almost the size of Argentina.

Two scientists in Japan report in Nature Ecology and Evolution that they matched levels of deforestation against trade with the world’s biggest economies, to find a clear correlation. They could even distinguish demand in one rich country and its impact on the forests of a poorer nation.

“Richer countries are encouraging deforestation through demand for commodities”

“While cocoa consumption in Germany poses the highest risk to the forests in Côte d’Ivoire and Ghana, deforestation in coastal Tanzania is dominated by Japanese consumers for some agricultural commodities, such as cotton and sesame seed,” they write.

“China shares the most significant responsibility for deforestation in Indochina − particularly in northern Laos for timber and rubber.”

Ironically, many of the richer nations have expanded the areas of forest on their own soil. More than 90% of the deforestation caused by five of the G7 nations was beyond their own borders. In effect, the rich were exporting the destruction of the natural world, and the cost to the planet was disproportionate. The loss of three trees in the Amazon might be more damaging than the loss of 14 trees in Norway, the scientists argue.

“Most forests are in poorer countries who are overwhelmed with economic incentives to cut them down. Our findings show that richer countries are encouraging deforestation through demand for commodities,” said Keiichiro Kanemoto of the Research Institute for Humanity and Nature in Kyoto.

“Policies that aim to preserve forests need to also alleviate poverty. With the coronavirus pandemic, unemployment poses more challenges to forest conservation in developing countries. We want our data to assist in the policy making.”

South American losses

And in the journal Science Advances, a team from the University of Maryland reports on a closer look at the impact of demand for pulpwood, sugar cane, beef, corn and other commodities on one continent: South America, home to some of the world’s most important ecosystems.

They found that human impact on the continent’s land surface just between the years 1985 and 2018 had expanded by 60%. In those years the natural tree cover had dwindled by 16%, and the scale of pasture increased by 23%, cropland by 160% and plantation by 288%.

The sum of all the altered land reached 268 million hectares, or 2.68m sq kms. Argentina, which coincidentally covers 2.73m sq kms, saw an increase of only 23% in human conversion of land use. Brazil tipped the scales with an expansion of 65% in those years.

And, say the researchers, of all this altered land cover on the continent, around 55 million hectares had been degraded − that is, it was no longer functioning as an ecosystem − while being employed for no commercial return. This is the equivalent of more than half a million square kilometres: an area slightly bigger than France.

“No region on Earth is likely to have experienced the scale of land conversion for the sake of agricultural commodity production that South America has,” the authors write. − Climate News Network

The tropical forests maintain global climate and nurture the riches of nature. The rich world’s demands are destroying them.

LONDON, 9 April, 2021 − The world’s great ecosystems − moderators of climate, nurseries for evolution − are still being destroyed in the service of global trade, to meet the rich world’s demands. Once again, researchers have confirmed that the wealthy nations are in effect ploughing savanna and felling tropical forests at a distance.

In the first 15 years of this century, the growing demand from the well-heeled for chocolate, rubber, cotton, soy, beef and exotic timber has meant that poorer nations have actually increased their levels of deforestation.

In effect, every human in the G7 nations − Canada, France, Germany, Italy, Japan, the UK and the US − is responsible for the loss of at least four trees a year, mostly in the developing world.

And in a separate study in another journal, another team of scientists has examined satellite data to confirm that between 1985 and 2018, humans cleared or altered 268 million hectares of natural ecosystem on the continent of South America. This is 2.68 million sq kilometres: an area almost the size of Argentina.

Two scientists in Japan report in Nature Ecology and Evolution that they matched levels of deforestation against trade with the world’s biggest economies, to find a clear correlation. They could even distinguish demand in one rich country and its impact on the forests of a poorer nation.

“Richer countries are encouraging deforestation through demand for commodities”

“While cocoa consumption in Germany poses the highest risk to the forests in Côte d’Ivoire and Ghana, deforestation in coastal Tanzania is dominated by Japanese consumers for some agricultural commodities, such as cotton and sesame seed,” they write.

“China shares the most significant responsibility for deforestation in Indochina − particularly in northern Laos for timber and rubber.”

Ironically, many of the richer nations have expanded the areas of forest on their own soil. More than 90% of the deforestation caused by five of the G7 nations was beyond their own borders. In effect, the rich were exporting the destruction of the natural world, and the cost to the planet was disproportionate. The loss of three trees in the Amazon might be more damaging than the loss of 14 trees in Norway, the scientists argue.

“Most forests are in poorer countries who are overwhelmed with economic incentives to cut them down. Our findings show that richer countries are encouraging deforestation through demand for commodities,” said Keiichiro Kanemoto of the Research Institute for Humanity and Nature in Kyoto.

“Policies that aim to preserve forests need to also alleviate poverty. With the coronavirus pandemic, unemployment poses more challenges to forest conservation in developing countries. We want our data to assist in the policy making.”

South American losses

And in the journal Science Advances, a team from the University of Maryland reports on a closer look at the impact of demand for pulpwood, sugar cane, beef, corn and other commodities on one continent: South America, home to some of the world’s most important ecosystems.

They found that human impact on the continent’s land surface just between the years 1985 and 2018 had expanded by 60%. In those years the natural tree cover had dwindled by 16%, and the scale of pasture increased by 23%, cropland by 160% and plantation by 288%.

The sum of all the altered land reached 268 million hectares, or 2.68m sq kms. Argentina, which coincidentally covers 2.73m sq kms, saw an increase of only 23% in human conversion of land use. Brazil tipped the scales with an expansion of 65% in those years.

And, say the researchers, of all this altered land cover on the continent, around 55 million hectares had been degraded − that is, it was no longer functioning as an ecosystem − while being employed for no commercial return. This is the equivalent of more than half a million square kilometres: an area slightly bigger than France.

“No region on Earth is likely to have experienced the scale of land conversion for the sake of agricultural commodity production that South America has,” the authors write. − Climate News Network

Frequent flyers should pay more to save the climate

Wealthy frequent flyers who take several holidays a year should pay higher taxes each time they fly, a British charity says.

LONDON, 6 April, 2021 – Although low-cost high-volume air travel has grown hugely this century, only a small proportion of the population, mostly in the world’s richest countries, ever take a flight – the frequent flyers who can afford to do so.

It is estimated that less than 20% of the world’s population has set foot on a plane, and of those that do fly, most travel by air once a year or less often, while the richest few take several flights annually.

This matters, because aviation is a significant driver of climate change,  and to prevent the world overheating dangerously pollution from aircraft has to be curbed.

One suggestion is that people who take many flights should pay a rising tax. Everyone’s first flight would be tax-free, to protect people taking one holiday a year, but frequent flyers, many of whom take a series of holidays, would pay an increasing tax for each extra flight in any calendar year.

Richest fly most

In a report, Elite Status, the UK-based charity Possible says that since it is the richest minority that flies most, this extra charge per flight would be a progressive tax – in other words, the people who could most easily afford it would pay the most.

The report says: “When it comes to climate change, air travel is uniquely damaging behaviour, resulting in more emissions per hour than any other activity – bar starting forest fires. This paper shows that it is also uniquely iniquitous. Everybody eats. But only the privileged few fly.”

The report looks at the state of flying before the Covid pandemic and analyses which are the countries that take most flights, and in each state what a tiny proportion of the population does the flying.

It comments that attempts by politicians to return aviation to its former  growth trajectory “by throwing public money at airlines” is going hand-in-hand with an awareness of the damage that flying does to the planet.

“Air travel is uniquely damaging behaviour … it is also uniquely iniquitous. Everybody eats. But only the privileged few fly”

It says the “fair, equitable and just” way to drive down aviation emissions is a frequent flyer levy. This would affect fewer than 1% of the world’s richest people, who account for more than half the passenger emissions generated by air travel.

One surprising finding in the report is that five nationalities (out of nearly 200 countries in the world) accounted for one third of all passengers on international routes in 2018.

Top of the table was the United Kingdom with 126.2 million flights, or 8.6% of the world’s passengers. The US came second with 111.5m, 7.6% of the total, and third was China with 97m (6.6%). Germany and France followed close behind.

Despite the high proportion of Europeans taking to the air compared with many less prosperous parts of the globe, there was still a very high proportion of the population (190m or 37%, excluding eastern Europe)  who had never been outside their own country, and more than half had never left the European Union.

Covid brings change

In 2010, as economies in the EU began to recover from the 2008 financial crash, 20% of the highest-income households were responsible for more than half of all expenditure on air travel, and for 14 times the expenditure of the 20% of lowest-income families.

A more recent statistic is that people on business are generally the most frequent flyers, with 10 or more flights a year, although on average air travellers take five flights annually, showing a tiny minority do most of the flying.

The report suggests that the coronavirus pandemic may change this pattern, with business flights being reduced because video conferencing has become both acceptable and time-saving.

The evidence from across the world, even in less-developed countries, is that everywhere, frequent flyers have higher incomes. It follows that, if international policies to control aviation’s climate impacts increase the cost of flying, this will impose greater costs on globally wealthy households. – Climate News Network

Wealthy frequent flyers who take several holidays a year should pay higher taxes each time they fly, a British charity says.

LONDON, 6 April, 2021 – Although low-cost high-volume air travel has grown hugely this century, only a small proportion of the population, mostly in the world’s richest countries, ever take a flight – the frequent flyers who can afford to do so.

It is estimated that less than 20% of the world’s population has set foot on a plane, and of those that do fly, most travel by air once a year or less often, while the richest few take several flights annually.

This matters, because aviation is a significant driver of climate change,  and to prevent the world overheating dangerously pollution from aircraft has to be curbed.

One suggestion is that people who take many flights should pay a rising tax. Everyone’s first flight would be tax-free, to protect people taking one holiday a year, but frequent flyers, many of whom take a series of holidays, would pay an increasing tax for each extra flight in any calendar year.

Richest fly most

In a report, Elite Status, the UK-based charity Possible says that since it is the richest minority that flies most, this extra charge per flight would be a progressive tax – in other words, the people who could most easily afford it would pay the most.

The report says: “When it comes to climate change, air travel is uniquely damaging behaviour, resulting in more emissions per hour than any other activity – bar starting forest fires. This paper shows that it is also uniquely iniquitous. Everybody eats. But only the privileged few fly.”

The report looks at the state of flying before the Covid pandemic and analyses which are the countries that take most flights, and in each state what a tiny proportion of the population does the flying.

It comments that attempts by politicians to return aviation to its former  growth trajectory “by throwing public money at airlines” is going hand-in-hand with an awareness of the damage that flying does to the planet.

“Air travel is uniquely damaging behaviour … it is also uniquely iniquitous. Everybody eats. But only the privileged few fly”

It says the “fair, equitable and just” way to drive down aviation emissions is a frequent flyer levy. This would affect fewer than 1% of the world’s richest people, who account for more than half the passenger emissions generated by air travel.

One surprising finding in the report is that five nationalities (out of nearly 200 countries in the world) accounted for one third of all passengers on international routes in 2018.

Top of the table was the United Kingdom with 126.2 million flights, or 8.6% of the world’s passengers. The US came second with 111.5m, 7.6% of the total, and third was China with 97m (6.6%). Germany and France followed close behind.

Despite the high proportion of Europeans taking to the air compared with many less prosperous parts of the globe, there was still a very high proportion of the population (190m or 37%, excluding eastern Europe)  who had never been outside their own country, and more than half had never left the European Union.

Covid brings change

In 2010, as economies in the EU began to recover from the 2008 financial crash, 20% of the highest-income households were responsible for more than half of all expenditure on air travel, and for 14 times the expenditure of the 20% of lowest-income families.

A more recent statistic is that people on business are generally the most frequent flyers, with 10 or more flights a year, although on average air travellers take five flights annually, showing a tiny minority do most of the flying.

The report suggests that the coronavirus pandemic may change this pattern, with business flights being reduced because video conferencing has become both acceptable and time-saving.

The evidence from across the world, even in less-developed countries, is that everywhere, frequent flyers have higher incomes. It follows that, if international policies to control aviation’s climate impacts increase the cost of flying, this will impose greater costs on globally wealthy households. – Climate News Network

Carbon emissions slow, but not nearly fast enough

Global shutdown during Covid-19 has forced down carbon emissions. But no inadvertent pause can replace global resolve.

LONDON, 8 March, 2021 − Five years after a planet-wide vow to reduce carbon emissions, it happened. In 2020, the world’s nations pumped only 34 billion tonnes of carbon dioxide into the atmosphere, a drop of 2.6bn tonnes on the previous year.

For that, thank the coronavirus that triggered a global pandemic and international lockdown, rather than the determination of the planet’s leaders, businesses, energy producers, consumers and citizens.

In fact, only 64 countries have cut their carbon emissions in the years since 195 nations delivered the Paris Climate Agreement of 2015: these achieved annual cuts of 0.16bn tonnes in the years since. But emissions actually rose in 150 nations, which means that overall from 2016 to 2019 emissions grew by 0.21bn tonnes, compared with the preceding five years, 2011-2015.

And, say British, European, Australian and US scientists in the journal Nature Climate Change, the global pause during the pandemic in 2020 is not likely to continue. To make the kind of carbon emissions cuts that will fulfill the promise made in Paris to contain global heating to “well below” 2°C by 2100, the world must reduce carbon dioxide emissions each year by one to two billion tonnes.

That is an annual increase of ten times the cuts achieved so far by only 64 out of 214 countries.

“It is in everyone’s best interests to build back better to speed the urgent transition to clean energy”

Researchers have, since 2015, repeatedly made the case − in economic terms, in terms of human safety and justice, in terms of human health and nutrition − for drastic reductions in the use of the fossil fuels that, ultimately, power all economic growth.

They have also repeatedly warned that almost no nation, anywhere, is doing nearly enough to help meet the proposed goal of no more than 1.5°C warming by the end of the century. The world has already warmed by more than 1°C in the last century, thanks to human choices. Soon planetary temperatures could cross a dangerous threshold.

And although the dramatic pause in economic activity triggered by yet another zoonotic virus, the emergence of which may be yet another consequence of human disturbance of the planet’s natural ecosystems, is an indicator of new possibilities, the planet is still addicted to fossil fuels.

“The drop in CO2 emissions in response to Covid-19 highlights the scale of actions and international adherence needed to tackle climate change,” said Corinne le Quéré, of the University of East Anglia, UK, who led the study.

“Now we need large-scale actions that are good for human health and good for the planet. It is in everyone’s best interests to build back better to speed the urgent transition to clean energy.”

Inching towards cuts

The latest accounting suggests that there has been some movement, though simply not enough. Between 2016 and 2019, carbon emissions decreased in 25 out of 36 high income countries. The USA’s fell by 0.7%, the European Union’s by 0.9% and the UK’s by 3.6%, and those emissions fell even after accounting for the carbon costs of goods imported from other nations.

Of the middle income nations, Mexico’s carbon emissions dropped by 1.3% and China’s by 0.4%, a dramatic contrast with 2011-2015, when China’s emissions had grown by 6.2% a year. But altogether, 99 upper-middle income economies accounted for 51% of global emissions in 2019, and China accounted for 28% of the global total.

Even in the US and China, money is still going into fossil fuels. The European Union, Denmark, France, the UK, Germany and Switzerland are among the few countries that have tried to limit fossil fuel power and implement some kind of economic “green” stimulus.

The message is that, after a series of years in which temperature records have been repeatedly broken, years marked by devastating fire, drought, flood and windstorm, nations need to act, and at speed, to honour the Paris promise to cut their carbon emissions.

“This pressing timeline is constantly underscored by the rapid unfolding of extreme climate impacts worldwide,” said Professor Le Quéré. − Climate News Network

Global shutdown during Covid-19 has forced down carbon emissions. But no inadvertent pause can replace global resolve.

LONDON, 8 March, 2021 − Five years after a planet-wide vow to reduce carbon emissions, it happened. In 2020, the world’s nations pumped only 34 billion tonnes of carbon dioxide into the atmosphere, a drop of 2.6bn tonnes on the previous year.

For that, thank the coronavirus that triggered a global pandemic and international lockdown, rather than the determination of the planet’s leaders, businesses, energy producers, consumers and citizens.

In fact, only 64 countries have cut their carbon emissions in the years since 195 nations delivered the Paris Climate Agreement of 2015: these achieved annual cuts of 0.16bn tonnes in the years since. But emissions actually rose in 150 nations, which means that overall from 2016 to 2019 emissions grew by 0.21bn tonnes, compared with the preceding five years, 2011-2015.

And, say British, European, Australian and US scientists in the journal Nature Climate Change, the global pause during the pandemic in 2020 is not likely to continue. To make the kind of carbon emissions cuts that will fulfill the promise made in Paris to contain global heating to “well below” 2°C by 2100, the world must reduce carbon dioxide emissions each year by one to two billion tonnes.

That is an annual increase of ten times the cuts achieved so far by only 64 out of 214 countries.

“It is in everyone’s best interests to build back better to speed the urgent transition to clean energy”

Researchers have, since 2015, repeatedly made the case − in economic terms, in terms of human safety and justice, in terms of human health and nutrition − for drastic reductions in the use of the fossil fuels that, ultimately, power all economic growth.

They have also repeatedly warned that almost no nation, anywhere, is doing nearly enough to help meet the proposed goal of no more than 1.5°C warming by the end of the century. The world has already warmed by more than 1°C in the last century, thanks to human choices. Soon planetary temperatures could cross a dangerous threshold.

And although the dramatic pause in economic activity triggered by yet another zoonotic virus, the emergence of which may be yet another consequence of human disturbance of the planet’s natural ecosystems, is an indicator of new possibilities, the planet is still addicted to fossil fuels.

“The drop in CO2 emissions in response to Covid-19 highlights the scale of actions and international adherence needed to tackle climate change,” said Corinne le Quéré, of the University of East Anglia, UK, who led the study.

“Now we need large-scale actions that are good for human health and good for the planet. It is in everyone’s best interests to build back better to speed the urgent transition to clean energy.”

Inching towards cuts

The latest accounting suggests that there has been some movement, though simply not enough. Between 2016 and 2019, carbon emissions decreased in 25 out of 36 high income countries. The USA’s fell by 0.7%, the European Union’s by 0.9% and the UK’s by 3.6%, and those emissions fell even after accounting for the carbon costs of goods imported from other nations.

Of the middle income nations, Mexico’s carbon emissions dropped by 1.3% and China’s by 0.4%, a dramatic contrast with 2011-2015, when China’s emissions had grown by 6.2% a year. But altogether, 99 upper-middle income economies accounted for 51% of global emissions in 2019, and China accounted for 28% of the global total.

Even in the US and China, money is still going into fossil fuels. The European Union, Denmark, France, the UK, Germany and Switzerland are among the few countries that have tried to limit fossil fuel power and implement some kind of economic “green” stimulus.

The message is that, after a series of years in which temperature records have been repeatedly broken, years marked by devastating fire, drought, flood and windstorm, nations need to act, and at speed, to honour the Paris promise to cut their carbon emissions.

“This pressing timeline is constantly underscored by the rapid unfolding of extreme climate impacts worldwide,” said Professor Le Quéré. − Climate News Network

Refugees and wildlife face risk from border walls

Not only humans but four-legged migrants are at risk from  border walls. Other species can be climate refugees too.

LONDON, 17 February 2021 − Something there is, wrote the American poet Robert Frost, “that does not love a wall.” Thanks to British researchers we now know that something is the white-lipped peccary, the jaguar and the southern spotted skunk. All of them − and many other species − could be affected by border walls like that separating  the US from Mexico.

The barrier between India and Myanmar, too, creates problems for the sloth bear, the Indian pangolin and the large spotted civet. And a fence along the Sino-Russian borders could be hard on the desert hare, the Tibetan antelope, the goitered gazelle and the Tibetan fox. When things become harsh on one side of the wall, none of them can move to a better home.

Which could be bad news because, as the planet heats up, and regional climate zones begin to shift, around one in three mammals and birds could by 2070 be forced to look for more welcoming habitat in another country.

Around 3,200 kilometres of man-made barrier now extend along national boundaries, precisely to prevent the unauthorised movement of refugees. But those same barriers could create problems for some of the 700 or so mammals that may have to shift home as regional climates change, according to a study in the Proceedings of the National Academy of Sciences.

The US-Mexican border wall alone could obstruct the migration of 122 species of four-legged animal refugee.

“If we are serious about protecting nature, reducing the impacts of border barriers on species will be really important − although there’s no substitute for tackling the greenhouse gas emissions at the root of the issue”

“Species all across the planet are on the move as they respond to a changing climate. Our findings show how important it is that species can move across national boundaries through connected habitats in order to cope with this change,” said Stephen Willis of Durham University in the UK.

“Borders that are fortified with walls and fences pose a serious threat to any species that can’t get across them. If we are serious about protecting nature, expanding transboundary conservation initiatives and reducing the impacts of border barriers on species will be really important − although there’s no substitute for tackling the greenhouse gas emissions at the root of the issue.”

Professor Willis and his colleagues started from the premise that the effectiveness of conservation action is not separable from what they call “underlying sociopolitical factors.”

There has, for more than a decade, been serious concern that climate change and human population expansion could ultimately lead to a mass extinction of wild creatures.

But mathematical models of the natural niches occupied by birds and mammals worldwide show that the biggest losses of native species will be in those countries with weaker governance and lower Gross Domestic Product.

No justice

And the disappearance of mammals in particular will be in those countries with the lowest levels of the greenhouse gas emissions that fuel climate change.

To survive, many of those species will have to migrate − and at that point, walls and fences designed to exclude human migrants will become major obstacles to the conservation of the wild things. The margay and the common opossum, the Mexican wolf and that wild cat the jaguarundi could all be turned back, along with hungry and near-desperate families, at the US-Mexican border.

“The stark inequities between those who contributed most to climate change and those who will be most impacted raise really important questions of international justice,” said Mark Titley, a researcher at Durham who led the study.

“Fortunately, our models also show how strong and urgent emissions reductions, in line with the Paris Agreement, could greatly reduce the impacts on biodiversity and relieve the burden of such losses on less wealthy nations.”

Or, as Robert Frost put it:

“Before I built a wall I’d ask to know What I was walling in or walling out…”

− Climate News Network

Not only humans but four-legged migrants are at risk from  border walls. Other species can be climate refugees too.

LONDON, 17 February 2021 − Something there is, wrote the American poet Robert Frost, “that does not love a wall.” Thanks to British researchers we now know that something is the white-lipped peccary, the jaguar and the southern spotted skunk. All of them − and many other species − could be affected by border walls like that separating  the US from Mexico.

The barrier between India and Myanmar, too, creates problems for the sloth bear, the Indian pangolin and the large spotted civet. And a fence along the Sino-Russian borders could be hard on the desert hare, the Tibetan antelope, the goitered gazelle and the Tibetan fox. When things become harsh on one side of the wall, none of them can move to a better home.

Which could be bad news because, as the planet heats up, and regional climate zones begin to shift, around one in three mammals and birds could by 2070 be forced to look for more welcoming habitat in another country.

Around 3,200 kilometres of man-made barrier now extend along national boundaries, precisely to prevent the unauthorised movement of refugees. But those same barriers could create problems for some of the 700 or so mammals that may have to shift home as regional climates change, according to a study in the Proceedings of the National Academy of Sciences.

The US-Mexican border wall alone could obstruct the migration of 122 species of four-legged animal refugee.

“If we are serious about protecting nature, reducing the impacts of border barriers on species will be really important − although there’s no substitute for tackling the greenhouse gas emissions at the root of the issue”

“Species all across the planet are on the move as they respond to a changing climate. Our findings show how important it is that species can move across national boundaries through connected habitats in order to cope with this change,” said Stephen Willis of Durham University in the UK.

“Borders that are fortified with walls and fences pose a serious threat to any species that can’t get across them. If we are serious about protecting nature, expanding transboundary conservation initiatives and reducing the impacts of border barriers on species will be really important − although there’s no substitute for tackling the greenhouse gas emissions at the root of the issue.”

Professor Willis and his colleagues started from the premise that the effectiveness of conservation action is not separable from what they call “underlying sociopolitical factors.”

There has, for more than a decade, been serious concern that climate change and human population expansion could ultimately lead to a mass extinction of wild creatures.

But mathematical models of the natural niches occupied by birds and mammals worldwide show that the biggest losses of native species will be in those countries with weaker governance and lower Gross Domestic Product.

No justice

And the disappearance of mammals in particular will be in those countries with the lowest levels of the greenhouse gas emissions that fuel climate change.

To survive, many of those species will have to migrate − and at that point, walls and fences designed to exclude human migrants will become major obstacles to the conservation of the wild things. The margay and the common opossum, the Mexican wolf and that wild cat the jaguarundi could all be turned back, along with hungry and near-desperate families, at the US-Mexican border.

“The stark inequities between those who contributed most to climate change and those who will be most impacted raise really important questions of international justice,” said Mark Titley, a researcher at Durham who led the study.

“Fortunately, our models also show how strong and urgent emissions reductions, in line with the Paris Agreement, could greatly reduce the impacts on biodiversity and relieve the burden of such losses on less wealthy nations.”

Or, as Robert Frost put it:

“Before I built a wall I’d ask to know What I was walling in or walling out…”

− Climate News Network

Solar power’s future could soon be overshadowed

Despite its recent runaway success, solar power’s future as a key way to counter climate chaos could soon be at risk.

LONDON, 12 February, 2021– As more households and industries have opted to harness the sun’s energy, a small but definite shadow is nagging at the many manufacturers who have put their faith in solar power’s future.

Prices have fallen dramatically: according to the International Energy Agency, the cost of producing electricity from solar energy dropped 80% over the past decade. But a mix of international economic rivalries and human rights issues could hamper the onward expansion of solar around the world.

Up till 15 years ago companies in Europe and Japan dominated the solar manufacturing industry. That has all changed: as with so many manufactured products, China now accounts for the bulk of solar equipment produced globally, with about a 70% share.

China itself is also by far the world’s biggest market for solar: about half of all solar power installed round the globe is in China.

China-based companies have invested heavily in sophisticated manufacturing facilities and in research and development. The country’s dominance of the solar manufacturing sector has caused concern in some countries.

“We’ve been telling all solar companies operating in the Xinjiang region to immediately move their supply chains. We’d ask all solar companies to immediately leave the region”

Manufacturers of photovoltaic panels and other solar products in East Asia, the US and Europe have alleged that cheaper, state-subsidised goods from China have hampered development of home-grown solar industries.

The former Trump administration in the US voiced increasingly strident opposition to what it saw as unfair trading practices by China: in early 2018 Washington slapped a 30% tariff on solar imports from China.

The resulting setback for the US solar market – and China’s exporters – was only temporary. The appetite in the US and elsewhere for solar power continues to grow.

In many countries solar energy is out-competing fossil fuels on price. Meanwhile new technologies and more efficient batteries mean large amounts of solar power can be stored for use in periods when the sun doesn’t shine.

Waiting for Biden

In 2019 there was a 24% increase in the number of solar installations in the US, with utility companies, particularly in sunnier and more environmentally progressive states such as California, leading the solar surge.

Whether or not the new Biden administration in the US will soften the hard line taken on China by former President Trump is uncertain.

Some feel that, while Biden might seek to ease trade tensions, there could be more emphasis on human rights issues, particularly in relation to the widely reported actions taken by Beijing against the Uighurs and other Muslim minorities in the north-western province of Xinjiang.

This could have serious implications for the solar industry, not only in China but worldwide. A number of China’s big solar manufacturers, some in partnership with foreign companies, have concentrated their operations in Xinjiang. The province accounts for the bulk of China’s production of polysilicon, one of the most important base materials for solar panels.

There have been reports not only about Uighurs and other groups in Xinjiang being forcibly herded into so-called re-education camps, but also of local people being used as forced labour in solar and other industries.

Human rights concern

Reacting to reports of widespread repression in the region, the US recently banned the import of tomatoes and cotton from Xinjiang.

The US Solar Energy Industries Association (SEIA) – a trade body representing the US solar industry and a sector employing an estimated 250,000 people – said it was taking the reports very seriously.

“Forced labour has no place in the solar industry”, said the SEIA. “Since the fall we’ve been proactively telling all solar companies operating in the Xinjiang region to immediately move their supply chains. We’d like to reiterate this call to action and ask all solar companies to immediately leave the region.”

Beijing has described the reports of forced labour in the province as “the biggest lie of the century”. – Climate News Network

Despite its recent runaway success, solar power’s future as a key way to counter climate chaos could soon be at risk.

LONDON, 12 February, 2021– As more households and industries have opted to harness the sun’s energy, a small but definite shadow is nagging at the many manufacturers who have put their faith in solar power’s future.

Prices have fallen dramatically: according to the International Energy Agency, the cost of producing electricity from solar energy dropped 80% over the past decade. But a mix of international economic rivalries and human rights issues could hamper the onward expansion of solar around the world.

Up till 15 years ago companies in Europe and Japan dominated the solar manufacturing industry. That has all changed: as with so many manufactured products, China now accounts for the bulk of solar equipment produced globally, with about a 70% share.

China itself is also by far the world’s biggest market for solar: about half of all solar power installed round the globe is in China.

China-based companies have invested heavily in sophisticated manufacturing facilities and in research and development. The country’s dominance of the solar manufacturing sector has caused concern in some countries.

“We’ve been telling all solar companies operating in the Xinjiang region to immediately move their supply chains. We’d ask all solar companies to immediately leave the region”

Manufacturers of photovoltaic panels and other solar products in East Asia, the US and Europe have alleged that cheaper, state-subsidised goods from China have hampered development of home-grown solar industries.

The former Trump administration in the US voiced increasingly strident opposition to what it saw as unfair trading practices by China: in early 2018 Washington slapped a 30% tariff on solar imports from China.

The resulting setback for the US solar market – and China’s exporters – was only temporary. The appetite in the US and elsewhere for solar power continues to grow.

In many countries solar energy is out-competing fossil fuels on price. Meanwhile new technologies and more efficient batteries mean large amounts of solar power can be stored for use in periods when the sun doesn’t shine.

Waiting for Biden

In 2019 there was a 24% increase in the number of solar installations in the US, with utility companies, particularly in sunnier and more environmentally progressive states such as California, leading the solar surge.

Whether or not the new Biden administration in the US will soften the hard line taken on China by former President Trump is uncertain.

Some feel that, while Biden might seek to ease trade tensions, there could be more emphasis on human rights issues, particularly in relation to the widely reported actions taken by Beijing against the Uighurs and other Muslim minorities in the north-western province of Xinjiang.

This could have serious implications for the solar industry, not only in China but worldwide. A number of China’s big solar manufacturers, some in partnership with foreign companies, have concentrated their operations in Xinjiang. The province accounts for the bulk of China’s production of polysilicon, one of the most important base materials for solar panels.

There have been reports not only about Uighurs and other groups in Xinjiang being forcibly herded into so-called re-education camps, but also of local people being used as forced labour in solar and other industries.

Human rights concern

Reacting to reports of widespread repression in the region, the US recently banned the import of tomatoes and cotton from Xinjiang.

The US Solar Energy Industries Association (SEIA) – a trade body representing the US solar industry and a sector employing an estimated 250,000 people – said it was taking the reports very seriously.

“Forced labour has no place in the solar industry”, said the SEIA. “Since the fall we’ve been proactively telling all solar companies operating in the Xinjiang region to immediately move their supply chains. We’d like to reiterate this call to action and ask all solar companies to immediately leave the region.”

Beijing has described the reports of forced labour in the province as “the biggest lie of the century”. – Climate News Network

Science suggests possible climate link to Covid-19

Researchers think there could be a climate link to Covid-19. In which case, worse could yet happen.

LONDON, 5 February, 2021 − British and US scientists think there may be a connection between global heating driven by profligate fossil fuel use, and the emergence of the bat-borne virus that has triggered a global pandemic and has so far claimed more than two million lives worldwide − in short, a possible climate link to Covid-19.

The connection is possibly quite simple. Rising average temperatures encouraged a change in the natural vegetation of the forests of Yunnan, the southern Chinese province, close to the forests of Laos and Myanmar.

What had been tropical shrubland shifted to tropical savannah and deciduous woodland: the province became a suitable habitat for many bat species. It is also home to the scaly anteater known as the pangolin, and the masked palm civet: both of these have been also proposed as intermediate carriers of the virus. 

And, researchers say, in the last century an additional 40 bat species moved into Yunnan: these may have delivered 100 more types of bat coronavirus to the pool of potential infection.

Magnet for bats

And this “global hotspot” − far from the city where the first human cases were first confirmed − is where all the genetic data suggest that the coronavirus known as SARS-CoV-2 may have arisen, says a study in the journal Science of the Total Environment.

“Climate change over the last century has made the habitat in Yunnan province suitable for more bat species,” said Robert Beyer of the University of Cambridge, now at the Potsdam Institute for Climate Impact Research in Germany, who led the research.

“Understanding how the global distribution of bat species has shifted as a result of climate change may be an important step in reconstructing the origin of the Covid-19 outbreak.”

That animals carry viruses which can infect other species is well established: the HIV-Aids pandemic, the Ebola outbreaks in Africa and many other infections have all been linked to animal-to-human transmission.

For decades, scientists have been recording new “zoonotic” or animal-borne diseases in humans at the rate of two a year. An estimated 80% of all the viruses linked to human disease are of animal origin, including rabies.

“The fact that climate change can accelerate the transmission of wildlife pathogens to humans should be an urgent wake-up call to reduce global emissions”

The link between human disturbance of wilderness and disease outbreak has been made before, and more than once. A study by Cambridge scientists last year identified 161 steps humankind could take to reduce the ever-growing risks of zoonotic infection that could lead to even more devastating pandemics.

The case for bat transmission of SARS-CoV-2 driven by climate change remains circumstantial. It identifies a suspect and a set of possibly incriminating connections, but does not deliver the evidence for a secure conviction.

Using global records of temperature, rainfall and cloud cover, the scientists behind the latest study mapped global vegetation as it must have been a century ago. Then they used what they knew of the ecology of the world’s bat species to estimate the global distribution of each species 100 years ago. And then they matched this with records of species distribution in the last decade.

“As climate change altered habitats, species left some areas and moved into others − taking their viruses with them. This not only altered the regions where viruses are present, but most likely allowed for new interactions between animals and viruses, causing more harmful viruses to be transmitted or evolve,” Dr Beyer said.

There are more than 1,400 species of bat worldwide: these carry around 3,000 kinds of coronavirus, in ways that are mostly harmless to the host.

Risk increases

If the number of bat species increases, in a region also occupied by humans, then the risk of the infection of a new host, via bat urine, faeces, saliva or other transmission, also increases.

Bat viruses have been linked to Middle East Respiratory Syndrome, or MERS, and Severe Acute Respiratory Syndrome Cov-1 and CoV-2.

The region of Yunnan identified as now richer in bat species is also home to the pangolin, and one theory is that the virus jumped from bat to pangolin, or bat to masked palm civet, and then to humans when a pangolin was sold at a wildlife market in Wuhan, in Hubei province, more than 1200 kilometres away, where the first cases of Covid-19 were detected..

The implication of such a research finding is that, if human disturbance of the natural world increases the chance of such animal-to-human infection, then it will happen again. And it could happen with even greater potential loss of life.

That is why the discovery of this possible climate link to Covid-19 will now attract the minutest attention not only of scientists but of policymakers across the world.

“The fact that climate change can accelerate the transmission of wildlife pathogens to humans should be an urgent wake-up call to reduce global emissions,” said Camilo Mora, of the University of Hawaii, another of the research team. − Climate News Network

Researchers think there could be a climate link to Covid-19. In which case, worse could yet happen.

LONDON, 5 February, 2021 − British and US scientists think there may be a connection between global heating driven by profligate fossil fuel use, and the emergence of the bat-borne virus that has triggered a global pandemic and has so far claimed more than two million lives worldwide − in short, a possible climate link to Covid-19.

The connection is possibly quite simple. Rising average temperatures encouraged a change in the natural vegetation of the forests of Yunnan, the southern Chinese province, close to the forests of Laos and Myanmar.

What had been tropical shrubland shifted to tropical savannah and deciduous woodland: the province became a suitable habitat for many bat species. It is also home to the scaly anteater known as the pangolin, and the masked palm civet: both of these have been also proposed as intermediate carriers of the virus. 

And, researchers say, in the last century an additional 40 bat species moved into Yunnan: these may have delivered 100 more types of bat coronavirus to the pool of potential infection.

Magnet for bats

And this “global hotspot” − far from the city where the first human cases were first confirmed − is where all the genetic data suggest that the coronavirus known as SARS-CoV-2 may have arisen, says a study in the journal Science of the Total Environment.

“Climate change over the last century has made the habitat in Yunnan province suitable for more bat species,” said Robert Beyer of the University of Cambridge, now at the Potsdam Institute for Climate Impact Research in Germany, who led the research.

“Understanding how the global distribution of bat species has shifted as a result of climate change may be an important step in reconstructing the origin of the Covid-19 outbreak.”

That animals carry viruses which can infect other species is well established: the HIV-Aids pandemic, the Ebola outbreaks in Africa and many other infections have all been linked to animal-to-human transmission.

For decades, scientists have been recording new “zoonotic” or animal-borne diseases in humans at the rate of two a year. An estimated 80% of all the viruses linked to human disease are of animal origin, including rabies.

“The fact that climate change can accelerate the transmission of wildlife pathogens to humans should be an urgent wake-up call to reduce global emissions”

The link between human disturbance of wilderness and disease outbreak has been made before, and more than once. A study by Cambridge scientists last year identified 161 steps humankind could take to reduce the ever-growing risks of zoonotic infection that could lead to even more devastating pandemics.

The case for bat transmission of SARS-CoV-2 driven by climate change remains circumstantial. It identifies a suspect and a set of possibly incriminating connections, but does not deliver the evidence for a secure conviction.

Using global records of temperature, rainfall and cloud cover, the scientists behind the latest study mapped global vegetation as it must have been a century ago. Then they used what they knew of the ecology of the world’s bat species to estimate the global distribution of each species 100 years ago. And then they matched this with records of species distribution in the last decade.

“As climate change altered habitats, species left some areas and moved into others − taking their viruses with them. This not only altered the regions where viruses are present, but most likely allowed for new interactions between animals and viruses, causing more harmful viruses to be transmitted or evolve,” Dr Beyer said.

There are more than 1,400 species of bat worldwide: these carry around 3,000 kinds of coronavirus, in ways that are mostly harmless to the host.

Risk increases

If the number of bat species increases, in a region also occupied by humans, then the risk of the infection of a new host, via bat urine, faeces, saliva or other transmission, also increases.

Bat viruses have been linked to Middle East Respiratory Syndrome, or MERS, and Severe Acute Respiratory Syndrome Cov-1 and CoV-2.

The region of Yunnan identified as now richer in bat species is also home to the pangolin, and one theory is that the virus jumped from bat to pangolin, or bat to masked palm civet, and then to humans when a pangolin was sold at a wildlife market in Wuhan, in Hubei province, more than 1200 kilometres away, where the first cases of Covid-19 were detected..

The implication of such a research finding is that, if human disturbance of the natural world increases the chance of such animal-to-human infection, then it will happen again. And it could happen with even greater potential loss of life.

That is why the discovery of this possible climate link to Covid-19 will now attract the minutest attention not only of scientists but of policymakers across the world.

“The fact that climate change can accelerate the transmission of wildlife pathogens to humans should be an urgent wake-up call to reduce global emissions,” said Camilo Mora, of the University of Hawaii, another of the research team. − Climate News Network

Rising sea levels may make some airports unusable

High flyers could soon have a problem with high water. Rising sea levels could one day shut down airports.

LONDON, 3 February, 2021 − Passengers, prepare for splashdown. Take-off may have to wait for low tide. By 2100, thanks to rising sea levels, around 100 of the world’s airports could be below mean sea level and at least 364 will be vulnerable to flooding.

And that’s assuming the world’s nations keep a promise made in 2015 and confine global heating to no more than 2°C above the average maintained for most of human history. If humans go on burning fossil fuels and clearing forests at the present rate, then at least 572 of the world’s airports could be at risk of flooding from extreme tides, according to a new study in the journal Climate Risk Management.

These things have already happened: in 2018 a typhoon storm surge inundated Kansai International Airport in Osaka Bay, Japan. Superstorm Sandy in 2012 closed New York City’s La Guardia Airport for three days. One-tenth of the planet’s population lives on coastlines less than 10 metres above sea level.

Airports grow up around the great cities: they require flat land and a clear flight path. Coastal flood plains, wetlands and reclaimed land provide exactly that.

Serious risk

“These coastal airports are disproportionately important to the global airline network, and by 2100 between 10% and 20% of all routes will be at risk of disruption,” said Richard Dawson, an engineer at Newcastle University in the United Kingdom. “Sea level rise therefore poses a serious risk to global passenger and freight movements, with considerable cost of damage and disruption.”

He and a colleague looked at the world’s 14,000 airports and helicopter pads to identify 1,238 airports in what geographers call low elevation coastal zones: that is, down by the seaside. Of these, 199, serving 3,436 routes, were in the US; China had 30 airports serving 2,333 routes.

They found that just 20 airports at risk handled more than 800 million passengers in 2018 − approaching a fifth of the world’s passenger traffic that year − and nearly 16 million tonnes of cargo: one-fourth of all the world’s air freight that year. They then started looking at what climate change could do to all that business.

Even before the shutdown of traffic because of the global pandemic, the world’s airlines had been feeling the heat. Research teams have confirmed that ever higher global temperatures mean more atmospheric turbulence at altitude; that wind speed changes will slow flights and raise costs; that extremes of heat could even close airport runways and delay flights for extended periods.

“These coastal airports are disproportionately important to the global airline network, and by 2100 between 10% and 20% of all routes will be at risk of disruption”

Now Professor Dawson and his colleague have compiled a table of hazard rankings for flooded airstrips under a range of climate change scenarios.

Right now, 269 of the world’s airports are at some risk of coastal flooding. This number must rise: by how much, and at what cost, depends on what actions the world takes. But the researchers calculate that by 2100 the risk of disruption could increase 17-fold, or even 69-fold. And because so many important airports are already at or near sea level, up to a fifth of all the world’s routes will be at risk.

And that means higher costs for flood protection, or action to raise airport sites, or relocation. The choice is to adapt or, quite literally, to go under.

“The cost of adaptation will be modest in the context of global infrastructure expenditure,” Professor Dawson said. “However, in some locations the rate of sea level rise, limited economic resources or space for alternative locations will make some airports unviable.” − Climate News Network

High flyers could soon have a problem with high water. Rising sea levels could one day shut down airports.

LONDON, 3 February, 2021 − Passengers, prepare for splashdown. Take-off may have to wait for low tide. By 2100, thanks to rising sea levels, around 100 of the world’s airports could be below mean sea level and at least 364 will be vulnerable to flooding.

And that’s assuming the world’s nations keep a promise made in 2015 and confine global heating to no more than 2°C above the average maintained for most of human history. If humans go on burning fossil fuels and clearing forests at the present rate, then at least 572 of the world’s airports could be at risk of flooding from extreme tides, according to a new study in the journal Climate Risk Management.

These things have already happened: in 2018 a typhoon storm surge inundated Kansai International Airport in Osaka Bay, Japan. Superstorm Sandy in 2012 closed New York City’s La Guardia Airport for three days. One-tenth of the planet’s population lives on coastlines less than 10 metres above sea level.

Airports grow up around the great cities: they require flat land and a clear flight path. Coastal flood plains, wetlands and reclaimed land provide exactly that.

Serious risk

“These coastal airports are disproportionately important to the global airline network, and by 2100 between 10% and 20% of all routes will be at risk of disruption,” said Richard Dawson, an engineer at Newcastle University in the United Kingdom. “Sea level rise therefore poses a serious risk to global passenger and freight movements, with considerable cost of damage and disruption.”

He and a colleague looked at the world’s 14,000 airports and helicopter pads to identify 1,238 airports in what geographers call low elevation coastal zones: that is, down by the seaside. Of these, 199, serving 3,436 routes, were in the US; China had 30 airports serving 2,333 routes.

They found that just 20 airports at risk handled more than 800 million passengers in 2018 − approaching a fifth of the world’s passenger traffic that year − and nearly 16 million tonnes of cargo: one-fourth of all the world’s air freight that year. They then started looking at what climate change could do to all that business.

Even before the shutdown of traffic because of the global pandemic, the world’s airlines had been feeling the heat. Research teams have confirmed that ever higher global temperatures mean more atmospheric turbulence at altitude; that wind speed changes will slow flights and raise costs; that extremes of heat could even close airport runways and delay flights for extended periods.

“These coastal airports are disproportionately important to the global airline network, and by 2100 between 10% and 20% of all routes will be at risk of disruption”

Now Professor Dawson and his colleague have compiled a table of hazard rankings for flooded airstrips under a range of climate change scenarios.

Right now, 269 of the world’s airports are at some risk of coastal flooding. This number must rise: by how much, and at what cost, depends on what actions the world takes. But the researchers calculate that by 2100 the risk of disruption could increase 17-fold, or even 69-fold. And because so many important airports are already at or near sea level, up to a fifth of all the world’s routes will be at risk.

And that means higher costs for flood protection, or action to raise airport sites, or relocation. The choice is to adapt or, quite literally, to go under.

“The cost of adaptation will be modest in the context of global infrastructure expenditure,” Professor Dawson said. “However, in some locations the rate of sea level rise, limited economic resources or space for alternative locations will make some airports unviable.” − Climate News Network

India has an (official) climate change of heart

India’s new approach seems to show a climate change of heart by one of the world’s most populous countries.


CHENNAI, 23 December, 2020 − The question taxing the brains of India’s climate campaigners is challenging. What’s going on in Delhi? Has the government really had a climate change of heart?

After all, it’s only a decade ago that United Nations climate conferences were routinely hearing from Indian delegates that their priority was development. Global warming was a problem for the industrialised countries, the Indians would insist, because they had caused the problem in the first place.

Now, after dozens of scientific reports showing how millions of Indians will suffer, many of India’s leading companies and civil society organisations  − and even the government itself − are making strenuous efforts to reach the targets of the Paris Agreement on climate change, which binds every signatory to reach an agreed level for cutting its greenhouse gas emissions.

The Indian government has set up a high-level group, the Apex Committee for the Implementation of the Paris Agreement (AIPA), to ensure that the country does in fact meet its Paris targets.

AIPA will monitor both government and private sector contributions towards climate change and see to it that India is on track to meet its obligations under the Agreement, including what are known in the jargon of climate negotiations as its Nationally Determined Contributions (NDCs).

“If government fails to work with people and include their suggestions in implementation, that will be reflected in its progress to combat climate change’’

A year ago a highly critical report by the International Renewable Energy Agency (IRENA) said that governments which had signed the Paris accord were not reaching their declared NDC targets, which − even if implemented in full − would still allow the world to warm by 2.6°C, 70% more than the 1.5°C regarded as desirable in the Agreement.

India’s creation of AIPA follows China’s unexpected decision to pursue a net zero emissions target in 2060. These moves, and the pledges of the developed world at the recent Climate Ambition Summit, are not enough to satisfy all the critics, but they are a big leap forward for the developing world.

The Apex Group will also regulate India’s carbon markets, formulating guidelines on carbon pricing, market mechanisms and other relevant measures, and “will engage with the private sector as well as multi- and bilateral agencies in the field of climate change and provide guidance for aligning their actions with national priorities”, the Hindustan Times reports.

At the recent G20 summit India’s prime minister, Narendra Modi, said the country was not only meeting its Paris targets but was exceeding them. It has made eight commitments under the NDC requirement, with three goals set to be achieved by 2030.

It has promised to work on reductions in the emissions intensity of its gross domestic product by 33-35% over 2005 levels. It plans to be producing about 40% of its electricity from non-fossil fuel-based energy resources. And it intends to create an additional carbon sink of 2.5 to 3 billion tonnes of carbon dioxide equivalent through additional forest and tree cover.

Decision by elite

Despite these sweeping promises there are still doubts among India’s environmental activists that, without involving ordinary citizens, the goals will be reached. One, a prominent campaigner, Arul Selvam, said that only when the government included grassroots leaders would it achieve its goals both on paper and in reality.

“Decisions are taken by experts, senior officers and ministers”, he said. “It would be useful to include members from associations of organic farmers, small-scale traders, village-level workers, fishermen and conservationists.”

This would improve the implementation of any programme on the ground, with many people across India already living sustainable daily lives.

India had seen protests against environmental degradation caused by industry and government, so at least the government should now start working with people to ensure that its plans succeeded on the ground and yielded results.

“If government fails to work with people and include their suggestions in implementation, that will be reflected in its progress to combat climate change,’’ Arul Selvam said. − Climate News Network

India’s new approach seems to show a climate change of heart by one of the world’s most populous countries.


CHENNAI, 23 December, 2020 − The question taxing the brains of India’s climate campaigners is challenging. What’s going on in Delhi? Has the government really had a climate change of heart?

After all, it’s only a decade ago that United Nations climate conferences were routinely hearing from Indian delegates that their priority was development. Global warming was a problem for the industrialised countries, the Indians would insist, because they had caused the problem in the first place.

Now, after dozens of scientific reports showing how millions of Indians will suffer, many of India’s leading companies and civil society organisations  − and even the government itself − are making strenuous efforts to reach the targets of the Paris Agreement on climate change, which binds every signatory to reach an agreed level for cutting its greenhouse gas emissions.

The Indian government has set up a high-level group, the Apex Committee for the Implementation of the Paris Agreement (AIPA), to ensure that the country does in fact meet its Paris targets.

AIPA will monitor both government and private sector contributions towards climate change and see to it that India is on track to meet its obligations under the Agreement, including what are known in the jargon of climate negotiations as its Nationally Determined Contributions (NDCs).

“If government fails to work with people and include their suggestions in implementation, that will be reflected in its progress to combat climate change’’

A year ago a highly critical report by the International Renewable Energy Agency (IRENA) said that governments which had signed the Paris accord were not reaching their declared NDC targets, which − even if implemented in full − would still allow the world to warm by 2.6°C, 70% more than the 1.5°C regarded as desirable in the Agreement.

India’s creation of AIPA follows China’s unexpected decision to pursue a net zero emissions target in 2060. These moves, and the pledges of the developed world at the recent Climate Ambition Summit, are not enough to satisfy all the critics, but they are a big leap forward for the developing world.

The Apex Group will also regulate India’s carbon markets, formulating guidelines on carbon pricing, market mechanisms and other relevant measures, and “will engage with the private sector as well as multi- and bilateral agencies in the field of climate change and provide guidance for aligning their actions with national priorities”, the Hindustan Times reports.

At the recent G20 summit India’s prime minister, Narendra Modi, said the country was not only meeting its Paris targets but was exceeding them. It has made eight commitments under the NDC requirement, with three goals set to be achieved by 2030.

It has promised to work on reductions in the emissions intensity of its gross domestic product by 33-35% over 2005 levels. It plans to be producing about 40% of its electricity from non-fossil fuel-based energy resources. And it intends to create an additional carbon sink of 2.5 to 3 billion tonnes of carbon dioxide equivalent through additional forest and tree cover.

Decision by elite

Despite these sweeping promises there are still doubts among India’s environmental activists that, without involving ordinary citizens, the goals will be reached. One, a prominent campaigner, Arul Selvam, said that only when the government included grassroots leaders would it achieve its goals both on paper and in reality.

“Decisions are taken by experts, senior officers and ministers”, he said. “It would be useful to include members from associations of organic farmers, small-scale traders, village-level workers, fishermen and conservationists.”

This would improve the implementation of any programme on the ground, with many people across India already living sustainable daily lives.

India had seen protests against environmental degradation caused by industry and government, so at least the government should now start working with people to ensure that its plans succeeded on the ground and yielded results.

“If government fails to work with people and include their suggestions in implementation, that will be reflected in its progress to combat climate change,’’ Arul Selvam said. − Climate News Network

Chill out the easy way: science can cool you down

There’s more than one way to chill out. White paint and watery windows could help. So could the deep blue sea.

LONDON, 21 December, 2020 − It’s getting simpler and cheaper to chill out: US scientists have developed an ultra-cool white paint that can reflect more than 95% of the sun’s rays and keep the house cooler on the hottest days.

Across the Pacific in Singapore, researchers have developed a “smart window” clever enough to block the incoming sunlight and regulate the building’s internal temperature. It’s pretty good at blocking the noise from the streets, too.

And people who live on tropical islands and find the heat a bit much can cool their homes with a steady flow of cold seawater from the ocean depths.

Austrian researchers calculate that a cubic metre of water from 700 metres below the ocean surface can deliver the same cooling power as 21 wind turbines, or a solarpowered-farm the size of 68 football fields.

Prototypes tested

None of these developments is anywhere near commercial scale exploitation. But two have been tested in prototype and each is a reminder of the ingenuity and imagination at work in the world’s laboratories in bids to confront the energy crisis, limit climate change and find new and carbon-free ways to solve the planet’s mounting challenges.

One of the biggest of those challenges is the soaring thermometer: as global heating driven by profligate fossil fuel use steadily drives up the mercury, yet more and more people, if they want to chill out, are being forced to invest in air-conditioning, a technology that demands even more energy use and heightens the temperature in the city streets.

So the case for passive, or sophisticated, or simply new ways to turn to stay cool is irresistible. Researchers from Purdue University in Indiana in the US write, in the journal Cell Reports Physical Science, that they have developed a technology that could be used in commercial paints, that could be cheaper to make, and that could reflect so much sunlight back into space that the surface of the property could be cooler than the air around it. And it used calcium carbonate − think chalk, or limestone − rather than the more difficult-to-find titanium dioxide to do the trick.

Tests in West Lafayette, Indiana found that when the sun was at its zenith the paint surface stayed 1.7°C cooler than the atmosphere around it. At night, the paint temperature dropped to 10°C below the ambient surroundings.

“Scientists in Singapore have developed a liquid sandwiched between two glass panes that in tests can cut 45% of the energy needed to heat, ventilate and air-condition a property”

Windows are vital in building design, but they can be the least energy-efficient part of any construction. Scientists at Nanyang Technical University in Singapore report in the journal Joule that they have developed a hydrogel-based liquid sandwiched between two glass panes that − in tests − can cut 45% of the energy needed in heating, ventilation and air-conditioning a property.

This could be big business: buildings account for 40% of global energy usage, and half of that goes out of the world’s windows. With savings on that scale possible, all will be able to chill out.

So researchers have been experimenting with glass coatings that cut down the infra-red traffic − the waves that carry heat − from within and without the building, but which do not regulate visible sunlight, which heats the interior as it shines through the glass.

The Singapore scientists found that their micro-hydrogel could respond to temperature change, and turn opaque when exposed to heat. So it could block incoming sunlight, and return to clear glass when things got cooler. At the same time, the trapped hydrogel water stored a lot of thermal energy rather than let it into the building during the heat of the day, but gradually released it at night.

District cooling

In midsummer noonday tests in Beijing, when a normal glass window registered 84°C, the smart window glass stayed at 50°C and saved 11% of the energy required to maintain the same indoor air temperature.

They tested the smart glass in Shanghai in China, Las Vegas in the US, Riyadh in Saudi Arabia and in Singapore: in each case, it performed better than regular glass or low-emission windows. It also reduced noise 15% more efficiently than normal double-glazing.

And rather than cool indoor air, and pump the hot air back into the streets with an electric motor − the basis of most air-conditioning − scientists at the International Institute for Applied Systems Analysis in Austria report in the journal Energy Efficiency that for those who live on tropical or subtropical coasts, a short distance from the deep ocean, in places where electricity costs are high, it might be much cheaper to cool whole districts − universities, airports, data centres, hotels and resorts and so on − with pumped deep ocean water at temperatures of around 3°C to 5°C.

Stored tanks of cold seawater could even make chiller facilities more efficient, and reduce the costs of food storage. But, the IIASA team warns, there might be problems with the impact on coastal wildlife while returning the used seawater to the ocean surface. − Climate News Network

There’s more than one way to chill out. White paint and watery windows could help. So could the deep blue sea.

LONDON, 21 December, 2020 − It’s getting simpler and cheaper to chill out: US scientists have developed an ultra-cool white paint that can reflect more than 95% of the sun’s rays and keep the house cooler on the hottest days.

Across the Pacific in Singapore, researchers have developed a “smart window” clever enough to block the incoming sunlight and regulate the building’s internal temperature. It’s pretty good at blocking the noise from the streets, too.

And people who live on tropical islands and find the heat a bit much can cool their homes with a steady flow of cold seawater from the ocean depths.

Austrian researchers calculate that a cubic metre of water from 700 metres below the ocean surface can deliver the same cooling power as 21 wind turbines, or a solarpowered-farm the size of 68 football fields.

Prototypes tested

None of these developments is anywhere near commercial scale exploitation. But two have been tested in prototype and each is a reminder of the ingenuity and imagination at work in the world’s laboratories in bids to confront the energy crisis, limit climate change and find new and carbon-free ways to solve the planet’s mounting challenges.

One of the biggest of those challenges is the soaring thermometer: as global heating driven by profligate fossil fuel use steadily drives up the mercury, yet more and more people, if they want to chill out, are being forced to invest in air-conditioning, a technology that demands even more energy use and heightens the temperature in the city streets.

So the case for passive, or sophisticated, or simply new ways to turn to stay cool is irresistible. Researchers from Purdue University in Indiana in the US write, in the journal Cell Reports Physical Science, that they have developed a technology that could be used in commercial paints, that could be cheaper to make, and that could reflect so much sunlight back into space that the surface of the property could be cooler than the air around it. And it used calcium carbonate − think chalk, or limestone − rather than the more difficult-to-find titanium dioxide to do the trick.

Tests in West Lafayette, Indiana found that when the sun was at its zenith the paint surface stayed 1.7°C cooler than the atmosphere around it. At night, the paint temperature dropped to 10°C below the ambient surroundings.

“Scientists in Singapore have developed a liquid sandwiched between two glass panes that in tests can cut 45% of the energy needed to heat, ventilate and air-condition a property”

Windows are vital in building design, but they can be the least energy-efficient part of any construction. Scientists at Nanyang Technical University in Singapore report in the journal Joule that they have developed a hydrogel-based liquid sandwiched between two glass panes that − in tests − can cut 45% of the energy needed in heating, ventilation and air-conditioning a property.

This could be big business: buildings account for 40% of global energy usage, and half of that goes out of the world’s windows. With savings on that scale possible, all will be able to chill out.

So researchers have been experimenting with glass coatings that cut down the infra-red traffic − the waves that carry heat − from within and without the building, but which do not regulate visible sunlight, which heats the interior as it shines through the glass.

The Singapore scientists found that their micro-hydrogel could respond to temperature change, and turn opaque when exposed to heat. So it could block incoming sunlight, and return to clear glass when things got cooler. At the same time, the trapped hydrogel water stored a lot of thermal energy rather than let it into the building during the heat of the day, but gradually released it at night.

District cooling

In midsummer noonday tests in Beijing, when a normal glass window registered 84°C, the smart window glass stayed at 50°C and saved 11% of the energy required to maintain the same indoor air temperature.

They tested the smart glass in Shanghai in China, Las Vegas in the US, Riyadh in Saudi Arabia and in Singapore: in each case, it performed better than regular glass or low-emission windows. It also reduced noise 15% more efficiently than normal double-glazing.

And rather than cool indoor air, and pump the hot air back into the streets with an electric motor − the basis of most air-conditioning − scientists at the International Institute for Applied Systems Analysis in Austria report in the journal Energy Efficiency that for those who live on tropical or subtropical coasts, a short distance from the deep ocean, in places where electricity costs are high, it might be much cheaper to cool whole districts − universities, airports, data centres, hotels and resorts and so on − with pumped deep ocean water at temperatures of around 3°C to 5°C.

Stored tanks of cold seawater could even make chiller facilities more efficient, and reduce the costs of food storage. But, the IIASA team warns, there might be problems with the impact on coastal wildlife while returning the used seawater to the ocean surface. − Climate News Network

China and Australia face a climate tipping point

Once again, scientists warn that at least part of the world could be facing a climate tipping point. Two parts, in fact.

LONDON, 8 December 2020 − The grasslands of northern China and Mongolia could be about to lurch into a climate tipping point, an irreversible sequence of heat and drought.

This is a landscape that helped shape world history. The Hun forces that humbled the western Roman Empire 16 centuries ago, and the conquering hordes led by Genghis Khan that commanded most of the Asian continent and threatened Europe eight centuries later, both emerged from tribes of nomad herdsmen from its grasslands. Now it could itself be about to be reconfigured by human-driven climate change.

And that same anthropogenic climate tipping point poses the same threat to great tracts of south-east Australia: water could become more scarce, bush fires could become more frequent, and winds could begin to blow away the parched soils in droughts that could last decades, or even centuries.

Both studies are based on evidence from the past, and both on the story told by preserved annual growth rings. The warning from inner East Asia is based on the testimony of tree stumps and timbers from the last 260 years, say researchers in the journal Science.

“They’re alarming findings, in a long list of alarming findings…if humans continue to warm the planet, this is the future we may all be looking at”

The patterns of tree growth suggest that the recent consecutive summers marked by both heat and drought are new events, and could increase in frequency.

The high plains of central Asia can be very cold in winter, very hot in summer. But soil moisture normally evaporates to cool the air at the surface. In a sustained drought, the air becomes hotter. In recent years, the region’s lakes have been shrinking in extent − and in number.

“The result is more heatwaves, which means more soil water losses, which means more heatwaves − and where this might end, we cannot say,” said Deliang Chen of the University of Gothenburg in Sweden, one of the research team.

He and his co-authors warn bluntly that the double impact of sustained heat and prolonged drought “is potentially irreversible beyond a tipping point in the East Asian climate system.”

Mega-drought link

The evidence from Australia is based on a much more distant past, and preserved in stalagmites deep in a cave in New South Wales. Researchers write in the journal Scientific Reports that during a warm interval in the last Ice Age, from 129,000 to 116,000 years ago, global temperatures rose to levels much as they are today, and perhaps slightly warmer.

And the record of lower falls of snow, higher temperatures and ever-scarcer water, preserved in the ancient annual growths of underground calcium carbonate, provided the scientists with a hint of what to expect in a world of global heating driven by ever-increasing use of fossil fuels, and ever-greater destruction of natural ecosystems.

“We found that, in the past, a similar amount of warming has been associated with mega-drought conditions all over south-eastern Australia. These drier conditions prevailed for centuries, sometimes for more than 1000 years,” said Hamish McGowan of the University of Queensland, who led the study.

“They’re alarming findings, in a long list of alarming findings that climate scientists have released over the last few decades. We hope that this new research allows for new insights to our future climate and the risks it may bring, such as drought and associated bushfires. But importantly, if humans continue to warm the planet, this is the future we may all be looking at.” − Climate News Network

Once again, scientists warn that at least part of the world could be facing a climate tipping point. Two parts, in fact.

LONDON, 8 December 2020 − The grasslands of northern China and Mongolia could be about to lurch into a climate tipping point, an irreversible sequence of heat and drought.

This is a landscape that helped shape world history. The Hun forces that humbled the western Roman Empire 16 centuries ago, and the conquering hordes led by Genghis Khan that commanded most of the Asian continent and threatened Europe eight centuries later, both emerged from tribes of nomad herdsmen from its grasslands. Now it could itself be about to be reconfigured by human-driven climate change.

And that same anthropogenic climate tipping point poses the same threat to great tracts of south-east Australia: water could become more scarce, bush fires could become more frequent, and winds could begin to blow away the parched soils in droughts that could last decades, or even centuries.

Both studies are based on evidence from the past, and both on the story told by preserved annual growth rings. The warning from inner East Asia is based on the testimony of tree stumps and timbers from the last 260 years, say researchers in the journal Science.

“They’re alarming findings, in a long list of alarming findings…if humans continue to warm the planet, this is the future we may all be looking at”

The patterns of tree growth suggest that the recent consecutive summers marked by both heat and drought are new events, and could increase in frequency.

The high plains of central Asia can be very cold in winter, very hot in summer. But soil moisture normally evaporates to cool the air at the surface. In a sustained drought, the air becomes hotter. In recent years, the region’s lakes have been shrinking in extent − and in number.

“The result is more heatwaves, which means more soil water losses, which means more heatwaves − and where this might end, we cannot say,” said Deliang Chen of the University of Gothenburg in Sweden, one of the research team.

He and his co-authors warn bluntly that the double impact of sustained heat and prolonged drought “is potentially irreversible beyond a tipping point in the East Asian climate system.”

Mega-drought link

The evidence from Australia is based on a much more distant past, and preserved in stalagmites deep in a cave in New South Wales. Researchers write in the journal Scientific Reports that during a warm interval in the last Ice Age, from 129,000 to 116,000 years ago, global temperatures rose to levels much as they are today, and perhaps slightly warmer.

And the record of lower falls of snow, higher temperatures and ever-scarcer water, preserved in the ancient annual growths of underground calcium carbonate, provided the scientists with a hint of what to expect in a world of global heating driven by ever-increasing use of fossil fuels, and ever-greater destruction of natural ecosystems.

“We found that, in the past, a similar amount of warming has been associated with mega-drought conditions all over south-eastern Australia. These drier conditions prevailed for centuries, sometimes for more than 1000 years,” said Hamish McGowan of the University of Queensland, who led the study.

“They’re alarming findings, in a long list of alarming findings that climate scientists have released over the last few decades. We hope that this new research allows for new insights to our future climate and the risks it may bring, such as drought and associated bushfires. But importantly, if humans continue to warm the planet, this is the future we may all be looking at.” − Climate News Network