It's been five years since the Copenhagen climate conference, and things have just gotten worse.
Climate justice leader Kari Fulton says the march in New York City this weekend is just the beginning.
The enemy of the human race takes a few hits.
Klein's new book, "This Changes Everything: Capitalism vs. the Climate," argues that it's now too late for incremental steps to fight climate change. We have go big.
Thirsty Californians now need to think twice before they tap that aquifer.
The largest demonstration in U.S. history was a nuclear disarmament rally in New York in 1982. Today's climate activists are following that lead.
Climate communicators badly want to believe that it's possible to reach the Tea Party. Recent episodes from far-right conservatism cast doubt on that proposition.
How would an independent Scotland pay for its clean energy future?
Dorie and Joyce Ladner helped organize some of the biggest protests of the civil rights era. Here's what they have to say to activists today.