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New inventory of black carbon emissions from China finds 2007 levels higher than previously reported

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for year 2007. A new black carbon (BC) emissions inventory from China found BC emissions levels in 2007 of 1,957 Gg BC—higher than reported in earlier studies. Black carbon is released into the atmosphere via incomplete combustion of carbonaceous fuel and is of major concern because of the impact on climate systems.

2007 271
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WMO: Atmospheric Concentrations of Main Greenhouse Gases in 2008 Set New Highs

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Relative contribution of major greenhouse gases to the overall change in radiative forcing between 1979 and 1984 (a) and from 2003 to 2008 (b). Atmospheric levels of major greenhouse gases continue to increase, according to the World Meteorological Organization’s (WMO) 2008 Greenhouse Gas Bulletin. from 2007 to 2008.

2008 218
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Satellite study suggests California clean air regulations working to reduce PM2.5 emissions in state

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km-resolution MISR aerosol properties over Southern California for years 2001–2003, 2007–2009 and 2013–2015. The MISR instrument used in the study was initially designed to help understand Earth’s climate. Maps of 3-year averaged PM 2.5 sulfate, nitrate, OC and EC concentrations estimated using 4.4 Click to enlarge.

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Copenhagen Diagnosis Released, Detailing Accelerating Indicators of Climate Change In Last Three Years

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A team of 26 climate scientists from Australia, Austria, Canada, France, Germany, Switzerland, the United Kingdom, and the United States have published the “Copenhagen Diagnosis”, an interim synthesis report on developments in climate change science from mid-2006 to the present day.

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New study finds GHG emissions from palm oil production significantly underestimated; palm oil biofuels could be more climate-damaging than oil sands fuels

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Chris Malins of the ICCT, one of the study co-authors, the EPA based its assumptions about the amount of peat swamp that would be destroyed by future palm oil expansion on old data, reflecting the development of the palm industry up to 2003. Everywhere we looked, the drainage of peat to plant palm oil is increasing.

Oil-Sands 314
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New NASA Satellite Survey Reveals Dramatic Arctic Sea Ice Thinning

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ICESat measurements of winter multi-year ice cover in the Arctic Ocean between 2004 and 2008, along with the corresponding downward trend in overall winter sea ice volume, and switch in dominant ice type from multi-year ice to first-year ice. By 2008, 68% of the total ice volume was first-year ice, with 32% multi-year.

2004 170
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Study Finds East Siberian Arctic Shelf Showing Instability and Widespread Venting of the GHG Methane; Releases May Be Much Larger and Faster Than Anticipated

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To discern whether this extensive CH 4 venting over the ESAS is a steadily ongoing phenomenon or signals the start of a more massive CH 4 release period, there is an urgent need for expanded multifaceted investigations into these inaccessible but climate-sensitive shelf seas north of Siberia. Shakhova et al. Natalia Shakhova.

Tundra 223