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Study finds rising temperatures increase risk of unhealthy ozone levels absent sharp cuts in precursors

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These gases come from human activities such as combustion of coal and oil as well as natural sources such as emissions from plants. Warmer temperatures and other changes in the atmosphere related to a changing climate, including higher atmospheric levels of methane, spur the chemical reactions that lead to ozone.

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Devil in the Details: World Leaders Scramble To Salvage and Shape Copenhagens UNFCCC Climate Summit

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“ One Agreement, Two Steps ” Expectations for Copenhagen quickly became complicated after Danish Prime Minister Lars Løkke Rasmussen boarded an overnight flight to Singapore to address an impromptu breakfast forum on climate change at the Asia Pacific Economic Co-operation (APEC) summit on 15 November. by Jack Rosebro.

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PwC analysis finds meeting 2 C warming target would require “unprecedented and sustained” reductions over four decades

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Since 2000, the global rate of decarbonization has averaged 0.8%; from 2010 to 2011, global carbon intensity fell by just 0.7%. —Leo Johnson, Partner, Sustainability and Climate Change, PwC. —Jonathan Grant, director, sustainability and climate change, PwC. a year from now to 2050.

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Final session on international mercury convention this week expected to culminate in agreement; UNEP Global Mercury Assessment 2013 finds industrial source Hg emissions may be rising

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Unintentional emission sectors: Coal burning, ferrous- and non-ferrous (Au, Cu, Hg, Pb, Zn) metal production, cement production. Artisanal and small-scale gold mining and coal burning are the major sources of anthropogenic mercury emissions to air. Comparison of Hg emissions in 2005 and 2010, by selected sector and region.

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Why Warren Buffett is investing in electric car company BYD - Apr. 13, 2009

Tony Karrer Delicious EVdriven

By about 2000, BYD had become one of the worlds largest manufacturers of cellphone batteries. His people at MidAmerican have studied clean technologies like batteries and wind power for years because of the threat of climate change. " Even before visiting BYD, Sokol believed in electric cars.

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Perspective: Regional Greenhouse Gas Cap-and-Trade Programs May be the Solution

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Cap-and-trade was first tried on a significant scale twenty years ago under the first Bush administration as a way to address the problem of airborne sulfur dioxide pollution–widely known as acid rain–from coal-burning power plants in the eastern United States. Waxman of California and Edward J. Reduced Output. The Stringency of the Cap.

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