Mon, 12 Mar 2012 08:41:51 CDT
Coal is one of the biggest sources of greenhouse gas emissions in the world. The good news is that coal's share of monthly power generation in the U.S. decreased to below 40 percent in November and December 2011, according to the U.S. Energy Information Administration (EIA). The last time coal's share of total generation fell below 40 percent for a monthly total was March 1978.
Read full article at: enn.com