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CMU county-level study shows plug-ins have larger or smaller lifecycle GHG than gasoline ICE depending on regional factors

Green Car Congress

A US-wide county-level study comparing lifecycle greenhouse gas (GHG) emissions from several light-duty passenger gasoline and plug-in electric vehicles (PEVs) has found that PEVs can have larger or smaller carbon footprints than gasoline vehicles depending on regional factors and the specific vehicle models being compared.

Gasoline 150
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Researchers describe the “where” and “when” of life cycle emissions from gasoline and ethanol in the US

Green Car Congress

Researchers from the University of Minnesota have produced a spatially and temporally explicit life cycle inventory (LCI) of air pollutants from gasoline, ethanol derived from corn grain, and ethanol from corn stover for the contiguous US (the lower 48 states). Dashed lines show US average emissions. Credit: ACS, Tessum et al.

Gasoline 236
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ARB posts six new LCFS pathway applications for comment; new PFAD biodiesel approach

Green Car Congress

The California Air Resources Board (ARB) staff has posted six new Low Carbon Fuel Standard (LCFS) pathway applications to the LCFS public comment web site: corn ethanol; molasses ethanol (from Brazil); palm fatty acid distillates (PFAD) to biodiesel; and landfill gas to LNG, L-CNG, and CNG. Earlier post.) gCO 2 e/MJ and 98.03 gCO2e/MJ.

Oil 247
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HEI report identifies potential health consequences from new vehicle fuels and technologies; recommended actions

Green Car Congress

The new SCET report reviews a range of new technologies and fuels, from improved internal combustion engines, to hybrid and other electric drive technologies, to existing and new bio- and other types of fuels. Hybrid, all-electric drive, and fuel cell technologies are likely to see substantial market penetration by the end of this decade.

Fuel 170
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New study of emissions and health impacts from EVs in China, including massive e-bike fleet

Green Car Congress

note that the focus of their study was motivated in part by the unprecedented rise in popularity of electric two-wheelers in China. While conventional vehicle (CV) ownership and electricity consumption in China are both increasing rapidly—annual growth rates during the past decade were ? 90% is from coal. —Ji et al.

Emissions 252
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Study finds removing corn residue for biofuel production can decrease soil organic carbon and increase CO2 emissions; may miss mandated 60% GHG reduction

Green Car Congress

Using corn crop residue to make ethanol and other biofuels reduces soil carbon and under some conditions can generate more greenhouse gases than gasoline, according to a major, multi-year study by a University of Nebraska-Lincoln team of researchers published in the journal Nature Climate Change. —Liska et al. g CO 2 e MJ ?1

Carbon 220
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Comprehensive modeling study finds electric drive vehicle deployment has little observed effect on US system-wide emissions

Green Car Congress

The results of a new, comprehensive modeling study characterizing light-duty electric drive vehicle (EDV) deployment in the US over 108 discrete scenarios do not demonstrate a clear and consistent trend toward lower system-wide emissions of CO 2 , SO 2 , and NO x as EDV deployment increases. decrease in total CO 2 in 2050.

Emissions 236