By
Emily Holden
June 6, 2014 at 11:33 am ET
New York Times’ Justin Gillis and Michael Wines explain how at least 10 states have cut their carbon emissions by 30 percent between 2005 and 2012 alone.
Maine, Massachusetts, New Hampshire and New York cut their power-sector emissions more than 40 percent from 2005 to 2012, according to the Georgetown Climate Center, with Maryland close behind at 39 percent.