Air Pollution

Air pollution 'will become bigger global killer than dirty water'

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Fiona Harvey
Fiona Harvey
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OECD report says pollution will become biggest cause of premature death, killing an estimated 3.6 million people a year by 2050

Urban air pollution is set to become the biggest environmental cause of premature death in the coming decades, overtaking even such mass killers as poor sanitation and a lack of clean drinking water, according to a new report. ... Read more about Air pollution 'will become bigger global killer than dirty water'

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Pollution in China: Man-made and visible from space

Pollution in China: Man-made and visible from space
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 “PM2.5” seems an odd and wonky term for the blogosphere to take up, but that is precisely what has happened in China in recent weeks. It refers to the smallest solid particles in the atmosphere—those less than 2.5 microns across. Such dust can get deep into people’s lungs; far deeper than that rated as PM10. Yet until recently China’s authorities have revealed measurements only for PM10. When people realised this, an online revolt broke out. Such was the public pressure that authorities caved in, and PM2.5 data are now being published for Beijing and a handful of other cities.
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Can Smarter Growth Guide China’s Urban Building Boom?

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david biello
Can Smarter Growth Guide China’s Urban Building Boom?
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The world has never seen anything like China’s dizzying urbanization boom, which has taken a heavy environmental toll. But efforts are now underway to start using principles of green design and smart growth to guide the nation’s future development.

Coal money, generated by one of the world’s largest open-pit mines, has built a new Ordos, a municipality in the Chinese province of Inner Mongolia. ... Read more about Can Smarter Growth Guide China’s Urban Building Boom?

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U.S. will lead new effort to cut global warming from methane, soot

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Brian Vastag
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With global efforts to reduce carbon dioxide emissions stalled, the United States and five other countries are starting a new program to cut other pollutants — including methane, soot and hydrofluorocarbons — that contribute to global warming. ... Read more about U.S. will lead new effort to cut global warming from methane, soot

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Global Carbon Emissions Reach Record 10 Billion Tons, Threatening 2 Degree Target

Global Carbon Emissions Reach Record 10 Billion Tons, Threatening 2 Degree Targe
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Global carbon dioxide emissions from burning fossil fuels have increased by 49 per cent in the last two decades, according to the latest figures by an international team, including researchers at the Tyndall Centre for Climate Change Research, University of East Anglia.

Published Dec. 4 in the journal Nature Climate Change, the new analysis by the Global Carbon Project shows fossil fuel emissions increased by 5.9 per cent in 2010 and by 49 per cent since 1990 -- the reference year for the Kyoto protocol.
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Shock as retreat of Arctic sea ice releases deadly greenhouse gas

Author: 

Steve Connor
Dramatic and unprecedented plumes of methane – a greenhouse gas 20 times more po
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Dramatic and unprecedented plumes of methane – a greenhouse gas 20 times more potent than carbon dioxide – have been seen bubbling to the surface of the Arctic Ocean by scientists undertaking an extensive survey of the region.

The scale and volume of the methane release has astonished the head of the Russian research team who has been surveying the seabed of the East Siberian Arctic Shelf off northern Russia for nearly 20 years. ... Read more about Shock as retreat of Arctic sea ice releases deadly greenhouse gas

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Greenhouse gases rise by record amount

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Associated Press
Emissions from a coal-fired power station. The output of greenhouse gases has ju
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The global output of heat-trapping carbon dioxide has jumped by a record amount, according to the US department of energy, a sign of how feeble the world's efforts are at slowing man-made global warming.

The figures for 2010 mean that levels of greenhouse gases are higher than the worst case scenario outlined by climate experts just four years ago.

"The more we talk about the need to control emissions, the more they are growing," said John Reilly, the co-director of MIT's Joint Program on the Science and Policy of Global Change. ... Read more about Greenhouse gases rise by record amount

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Climate concerns as ‘ozone-friendly’ HFCs use grows

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Mark Kinver
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A rise in the use of "ozone-friendly" HFCs has prompted experts to voice concerns that the potent greenhouse gases could be a problem in the future.

A UN report says that HFCs, many more times potent than CO2, could account for up to 20% of emissions and hamper efforts to curb climate change.

They are widely used in fridges and air conditioning, replacing CFCs and HCFCs that damage the Earth's ozone layer.

The findings were presented during a meeting on protecting the ozone layer. ... Read more about Climate concerns as ‘ozone-friendly’ HFCs use grows

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Why the world is burning more coal

Author: 

Fred Pearce
A worker walks past freshly-mined, high quality coal awaiting transport on a tra
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The inconvenient truth is that coal remains a cheap and dirty fuel — and the idea of 'clean' coal remains a distant dream ... Read more about Why the world is burning more coal

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Warming Could Exceed Safe Levels In This Lifetime

Author: 

Nina Chestney
A general view shows the Iztaccihuatl volcano in the city of Puebla, 100 km (62
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Global temperature rise could exceed "safe" levels of two degrees Celsius in some parts of the world in many of our lifetimes if greenhouse gas emissions continue to increase, two research papers published in the journal Nature warned. ... Read more about Warming Could Exceed Safe Levels In This Lifetime

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