Feb 15, 2013 11:41 PM GMT
Wind and biomass together made more of an impact. Solar should and could be much bigger.
http://www.washingtonpost.com/blogs/wonkblog/wp/2013/02/15/natural-gas-isnt-the-only-reason-u-s-carbon-emissions-are-plummeting/(Note that these calculations do not include fugitive methane emissions from natural gas or changes in land use from biofuel production. So that’s one key caveat.)