EPA says methane emissions from natural gas production have dropped 36% from 2007-2011
Green Car Congress
APRIL 29, 2013
The figure includes the direct effects and those indirect effects due to the production of tropospheric ozone and stratospheric water vapor.) The methane and non-combustion CO 2 emissions from natural gas systems are generally process related, with normal operations, routine maintenance, and system upsets being the primary contributors.
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