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EIA: US energy-related CO2 emissions down 2.4% in 2011 while GDP rose

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The US Energy Information Administration (EIA) reported that after an increase in 2010 of 3.3%, energy-related carbon dioxide emissions in the US in 2011 decreased by 2.4% (136 million metric tons), while GDP grew by 1.8%. Emissions in 2011 were 526 million metric tons (9%) below the 2005 level. mpg) from 2010 to 2011.

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Tsinghua University provincial-level lifecycle study finds fuel-cycle criteria pollutants of EVs in China could be up to 5x those of natural gas vehicles due to China’s coal-dominant power mix

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In regions where the share of coal-based electricity is relatively low, EVs can achieve substantial GHG reduction, the team reports in a paper in the ACS journal Environmental Science & Technology. According to the 12 th Five-Year Plan of the China Coal Industry (2011?2015)

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BP Statistical Review finds global oil share down for 12th year in a row, coal share up to highest level since 1969; renewables at 2%

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in 2011, close to the historical average. Coal’s market share of 30.3% in 2011, broadly in line with the historical average but well below the 5.1% Coal was again the fastest growing fossil fuel with predictable consequences for carbon emissions; it now accounts for 30.3% World primary energy consumption grew by 2.5%

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EPA: US greenhouse gases dropped 3.4% in 2012 from 2011; down 10% from 2005 levels

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decrease in 2012 from 2011. The major contributors to the decrease in emissions from 2011-2012 were the decrease in energy consumption across all sectors in the US economy, and the decrease in carbon intensity for electricity generation due to fuel switching from coal to natural gas. Click to enlarge. Source: EPA.

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Argonne study finds shale gas GHG lifecycle emissions 6% lower than natural gas, 23% lower than gasoline and 33% lower than coal; upstream methane leakage a key contributor

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Gasoline section shows results for fuel derived from both conventional oil and oil sands. The study also highlights that upstream CH 4 (methane) leakage and venting is a key contributor to the total upstream emissions of natural gas pathways, and can significantly reduce the life-cycle benefit of natural gas compared to coal or petroleum.

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Lifecycle analysis finds Fischer-Tropsch diesel from coal and biomass with CCS can use less fossil energy than petroleum diesel, with GHG close to or below zero

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A new study by Michael Wang and Jeongwoo Han at Argonne National Laboratory and Xiaomin Xie at Shanghai Jiao Tong University assesses the effects of carbon capture and storage (CCS) technology and cellulosic biomass and coal co-feeding in Fischer-Tropsch (FT) plants on energy use and greenhouse gas (GHG) emissions of FT diesel (FTD).

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

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Renault recently made public the findings of an internal study, published first in October 2011, detailing and comparing the lifecycle assessments (LCAs) of the battery-electric and two internal combustion engined versions (gasoline and diesel) of the Renault Fluence. Gasoline Fluence 16V. Electric Fluence Z.E.

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