Climate Sensitivity

September 26, 2013 - 12:36 PM
FILE - In this Dec. 3, 2009 file photo smoke billows from chimneys of the cooling towers of a coal-fired power plant in Dadong, Shanxi province, China. Scientists are more confident than ever that pumping carbon dioxide into the air by burning fossil fuels is warming the planet. By how much is something governments and scientists meeting in Stockholm will try to pin down with as much precision as possible Friday Sept. 27, 2013 in a seminal report on global warming. (AP Photo/Andy Wong, File)