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Satellite method provides insight into ozone-NOx-VOCs sensitivity for different locations

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Ozone pollution near Earth’s surface is one of the main ingredients of summertime smog. It is also not directly measurable from space due to the abundance of ozone higher in the atmosphere, which obscures measurements of surface ozone. —Jin et al.

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NOAA greenhouse gas index continues climbing; 1.29 in 2010

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NOAA’s updated Annual Greenhouse Gas Index (AGGI), which measures the direct climate influence of many greenhouse gases such as carbon dioxide and methane, shows a continued steady upward trend. Started in 2004, the AGGI reached 1.29 NOAA researchers developed the AGGI in 2004 and have so far back calculated it to 1978.

2010 199
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EPA proposes waiving Federal requirements for stations to capture gasoline vapors when vehicles refuel beginning in 2013

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The US Environmental Protection Agency (EPA) is issuing a proposed rule under the Clean Air Act (CAA) that would waive requirements beginning in 2013 for systems used at gas station pumps to capture potentially harmful gasoline vapors while refueling cars. Stage II Vapor Recovery Systems Issues Paper (EPA, 2004).

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WMO: Atmospheric Concentrations of Main Greenhouse Gases in 2008 Set New Highs

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Atmospheric levels of major greenhouse gases continue to increase, according to the World Meteorological Organization’s (WMO) 2008 Greenhouse Gas Bulletin. According to the NOAA Annual Greenhouse Gas Index (AGGI), the total radiative forcing by all long-lived greenhouse gases has increased by 26.2% WMO Greenhouse Gas Bulletin (no.

2008 218
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Calif. ARB releases GHG scoping plan update; more ZEVs, “LEV IV”, MD and HD regulations; ZEV for trucks; more LCFS

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The California Air Resources Board released the draft proposed first update to the AB 32 Scoping Plan, which guides development and implementation of California’s greenhouse gas emission reduction programs. The Air Resources Board is required to update the Scoping Plan every five years.

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UN Review of Recent Climate Research Concludes That Impacts Of Climate Change Coming Faster Than Anticipated

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This is despite the fact that natural variation will partially offset the warming signal from greenhouse gas emissions. The developing and least-developed economies, 80% of the world’s population, accounted for 73% of the global growth of emissions in 2004. Global emissions were growing by 1.1% per year from 2000-2007.

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California ARB Seeks Further Reductions of Diesel Emissions at State Rail Yards

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BNSF has been operating four liquefied natural gas yard locomotives in downtown Los Angeles since the mid-1990s. NO x helps create ground-level ozone, or smog. Diesel exhaust contains a variety of harmful gases and more than 40 other known cancer-causing substances.

Diesel 170