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NOAA greenhouse gas index continues climbing; 1.29 in 2010

Green Car Congress

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. It also includes several chemicals known to deplete Earth’s protective ozone layer, which are also active as greenhouse gases.

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Renault makes public its lifecycle study of Fluence ICE vs Fluence EV

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Renault’s comparison of the carbon footprint of EV and ICE vehicles over production, operation and end of life. The publication gives the opportunity for an “apples-to-apples” comparison between the environmental impacts of the two types of powertrains: same manufacturer, same model, same boundary conditions. Click to enlarge.

Li-ion 364
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Up close and personal with Volkswagen’s e-Golf carbon offset project: Garcia River Forest

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In 2014, Volkswagen of America announced that starting with the launch of the zero-tailpipe emissions battery-electric 2015 e-Golf ( earlier post ), it would invest in projects to offset the carbon emissions created from the e-Golf on a full lifecycle basis: production, distribution and up to approximately 36,000 miles (57,936 km) of driving.

Carbon 150
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Toyota to pioneer use of biosynthetic rubber in engine and drive system hoses

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Since plants absorb CO 2 from the atmosphere during their lifespan, such bio-materials achieve an estimated 20% reduction in material lifecycle carbon emissions in comparison to conventional petroleum-based hydrin rubber. Jointly developed by Toyota, Zeon Corporation , and Sumitomo Riko Co., Vacuum sensing hose production process.

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NASA GISS Study Finds That Methane Has an Elevated Warming Effect Due to Interactions With Aerosols

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New research by a team at the NASA Goddard Institute for Space Studies (GISS) in New York suggests that gas-aerosol interactions can amplify the global warming impact of some greenhouse gases. Because the latter was a $126 billion/year market in 2008, even small differences in GWPs can have large economic consequences. Shindell et al.

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Field study finds soot particles absorb significantly less sunlight than predicted by models; climate models may be overestimating warming by BC

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Although viewed as a potential target in the global effort to reduce climate change, atmospheric black carbon particles absorb significantly less sunlight than scientists have predicted, according to a new study by an international team of researchers, published in the journal Science. Credit: Cappa et al. Click to enlarge. Earlier post.).

Climate 261
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Study finds that environmental impact of corn-ethanol E85 is 23% to 33% higher than that of gasoline; environmental problem-shifting

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eutrophication; ET = ecological toxicity; FEC = fossil energy consumption; WU = water use; LO = land occupation; “The rest” includes acidification; smog formation; ozone layer depletion; and human health effects. This study highlighted the environmental impacts of corn ethanol in comparison with gasoline. GW = global warming; Eut.

Gasoline 357