After years of being stuck, the national conversation on climate change finally started to shift — just a little — last year, the hottest year on record in the U.S., with Hurricane Sandy flooding the New York subway, drought devastating Midwest farms, and California and Colorado on fire. Lots of peo...
Worldview talks with environmentalist and author Bill McKibben. McKibben is the founder of 350.org, an international climate change campaign that works in 188 countries around the world.
Alan Weisman, bestselling author of "The World Without Us," tackles the world's exploding human population in his new book, "Countdown."
Today, as the United Nations' Intergovernmental Panel on Climate Change releases its latest megareport, averring a 95 percent certainty that humans are heating up...