Researchers describe the “where” and “when” of life cycle emissions from gasoline and ethanol in the US
Green Car Congress
OCTOBER 11, 2012
60% of ground-level ozone (O 3 ) precursors, 6% of fine particulate matter (PM 2.5 ), and 22% of greenhouse gases (GHGs) emitted. They excluded emissions occurring outside of the contiguous US and surrounding waters) from the results below. On-road transportation accounts for approximately 20% of United States energy consumption.
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