Environment vs. jobs: Bill McKibben's contributions and limits
Bill McKibben plays a vital role in the environmental movement. As an activist, and thinker, his contributions have international significance.
2012 hottest U.S. year ever, warming and wildfires continue
2012 - a year marked by droughts, brushfires, and crop damage, was the hottest year on record for the lower 48 U.S. states.
