EPA: US greenhouse gases dropped 3.4% in 2012 from 2011; down 10% from 2005 levels
Green Car Congress
APRIL 16, 2014
According to the report, GHG emissions in 2012 showed a 10% drop below 2005 levels, and were only slightly above the emissions in 1994 (6,520 million metric tons). US greenhouse gas emissions by gas. Source: EPA. Click to enlarge.