Air Quality

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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When cooking can be deadly

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David Lindsay
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Dar es Salaam, Tanzania (CNN) -- An estimated 3 billion people -- nearly half the world's population -- still use an open fire as their primary source of energy for cooking and heating.

But there's a problem: the smoke.

"You have respiratory issues, lung disease, you've got pneumonia, and you've got longer-term issues like cancer and heart disease as well that can result from exposure to indoor air pollution," said Radha Muthiah, executive director of the Global Alliance for Clean Cookstoves. ... Read more about When cooking can be deadly

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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.
... Read more about Global Carbon Emissions Reach Record 10 Billion Tons, Threatening 2 Degree Target

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Shock as retreat of Arctic sea ice releases deadly greenhouse gas

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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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Time to Start Work on a Panic Button?

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JUSTIN GILLIS
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For two decades, the world’s governments have failed to meet their own commitment to reduce emissions of carbon dioxide, the main heat-trapping gas. As frustration builds among scientists, some of them have begun to argue for research on a potential last-ditch option in case global warming starts to get out of control. It is called geoengineering — or directly manipulating the Earth’s climate.

The idea sounds like science fiction, but it is not. ... Read more about Time to Start Work on a Panic Button?

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