IE 11 is not supported. For an optimal experience visit our site on another browser.
Will we begin to fear the ocean?
07:35Barrow, AK: The leading edge of climate change
06:52The Vanishing Island
06:23Conundrums of the California drought
05:41Farming through a drought
07:12Mayor Garcetti on adapting to historic drought
06:07California braces for a historic fire season
06:15The political battle over water in California
05:38Should companies bottle water in a drought?
06:01Who decides how to distribute water during a drought?
05:19Can desalination solve California's water problems?
06:28'The fact is, California is running out of water'
06:14Al Gore on GOP climate denialism
08:18Now Playing

Billionaire Tom Steyer on his climate activism
06:50UP NEXT
He's both a scientist and a politician
05:32Fires continue to rage in the West
02:10Your introduction to 'shade balls'
06:22White House Climate Adviser: ‘Sen. Manchin is not the enemy’
06:46
Billionaire Tom Steyer on his climate activism
06:50Activist and former hedge fund manager Tom Steyer joins Chris Hayes to discuss the evolution of climate change politics.Sept. 29, 2015
UP NEXT
Will we begin to fear the ocean?
07:35Barrow, AK: The leading edge of climate change
06:52The Vanishing Island
06:23Conundrums of the California drought
05:41Farming through a drought
07:12