Green Car Congress

APRIL 29, 2013

In its recently released Inventory of US Greenhouse Gas Emissions and Sinks: 1990 – 2011 ( earlier post ), the US Environmental Protection Agency (EPA) reported that methane (CH 4 ) emissions from the field production of natural gas have declined by 36% from 2007 to 2011 (from 83.1 a global warming potential of 21. (The

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2007 2011 EPA Gas 285

Green Car Congress

JULY 29, 2010

That ranks the effects of soot ahead of methane, an important greenhouse gas. 1990; Anisimov, 2007] and chemical production of ozone in already-polluted locations [Jacobson, 2008b]. These three gases are all greenhouse gases, and ozone is a surface air pollutant. He also found that soot emissions kill more than 1.5

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Global Ozone CO2 Pollution 230

Green Car Congress

MAY 18, 2009

In testimony for the US Environmental Protection Agency (EPA) public hearing ( earlier post ) on the proposed endangerment finding for greenhouse gas emissions under the Clean Air Act ( earlier post ), Stanford Professor Mark Jacobson urged the EPA to include black carbon in the finding. C increased Arctic warming from 1890 to 2007.

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Carbon EPA Pollution Ozone 150

Green Cars News

APRIL 19, 2009

After a thorough scientific review was ordered by the US Supreme Court in 2007, the Environmental Protection Agency (EPA) has issued a proposal on greenhouse gases. The analysis also looked at the impact of climate change on human health and suggests that it may lead to higher levels of ground-level ozone, a harmful pollutant.

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EPA Gas Climate Change Arlington 39

Green Car Congress

MARCH 8, 2013

Reducing the greenhouse gas emissions from MACs have been under investigation since the late 1990s; cars equipped with R134a (tetrafluoroethane) MAC systems produce emissions corresponding to 7 grams of CO 2 per driven kilometer. Baker (2007) Demonstration of an Energy-Efficient Secondary Loop HFC-152a Mobile Air Conditioning System.

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Future CO2 Climate 2009 311