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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.
90% is from coal. The team evaluated five vehicle types (gasoline and diesel cars, diesel buses, e-bikes, e-cars) and considered how environmental impacts varied depending on the emission location. 1 , equivalent to a gasoline car with a fuel economy of 5.6 1 , equivalent to a gasoline car with a fuel economy of 5.6
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.
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
Second, PHEVs with smaller battery packs are more likely to deliver emissions benefits and reduced gasoline consumption at lower lifetime cost compared to those with large battery packs in the short term. First, HEVs produce less emissions than conventional vehicles. —Babaee et al. Samaneh Babaee, Ajay S. Nagpure, and Joseph F.
The baseline carbon intensity for gasoline in the LCFS lookup table is 99.18 The six new pathways are: Heron Lake BioEnergy , LLC (HLBE) produces ethanol from corn at a dry mill plant in Heron Lake, Minnesota. The plant was originally fueled by coal but was converted to natural gas in 2010. gCO 2 e/MJ and 98.03
—“The Future of Vehicle Fuels and Technologies” Among the findings of the report are: New gasoline direct injection (GDI) technology offers improvements in fuel economy. There is increased development and use of a number of fuels from unconventional sources such as tar sands, oil shale, and coal.
A novel process known as Syngas Chemical Looping (SCL), in which coal and biomass are converted to electricity and CO 2 is efficiently captured, has been successfully demonstrated on a laboratory scale. Energy Efficient Capture of CO 2 from Coal Flue Gas. The University of Minnesota and BioCee, Inc. DOE grant: $3,111,693).
The transition away from gasoline and diesel vehicles to electric vehicles (EVs) is going full throttle in the United States, and that includes the iconic yellow school bus. As it turns out, the very gasoline or diesel vehicles children use to go to school hamper their learning.
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