President Barack Obama joined leaders from 150 nations Monday in pledging action against climate change, kicking off a historic two-week gathering that Obama called a "turning point" in the battle against one of humanity's gravest threats.
By Steven MufsonThe Washington Post, Denver Post
Mon, 11/30/2015 - 11:30pm
President Barack Obama joined leaders from 150 nations Monday in pledging action against climate change, kicking off a historic two-week gathering that Obama called a "turning point" in the battle against one of humanity's gravest threats.