Season 1 ends with Michael C. Hall reporting on rising sea levels along the coast of Bangladesh. Also: M. Sanjayan questions top climate scientists and visits Tupungatito, the northernmost historically active stratovolcano in the southern Andes.
Stories about the economic costs of climate change: Jessica Alba meets members of Climate Corps, who try to convince U.S. companies that sustainability can boost their bottom lines; Thomas Friedman examines how Kansas wheat fields impact Cairo; and Chris Hayes explores life after Hurricane Sandy.
America Ferrera profiles climate-change skeptic James M. Taylor of the Heartland Institute. Also: columnist Mark Bittman (New York Times) reports on natural gas.
Olivia Munn profiles Washington's climate-conscious governor Jay Inslee; columnist Mark Bittman (New York Times) probes New Jersey governor Chris Christie's thoughts on man-made climate change in the wake of rebuilding after Hurricane Sandy.
Lesley Stahl travels to Greenland to investigate the effects of global warming in the Arctic; Ian Somerhalder visits North Carolina to listen to both sides of an evangelical community's debate over climate change.
Chris Hayes shadows Rep. Michael Grimm (R-N.Y.) as he surveys damage done by Hurricane Sandy; conservationist M. Sanjayan interviews top climate scientists around the world.
Harrison Ford investigates the global effects of deforestation in Indonesia; Arnold Schwarzenegger joins an elite team of wildland firefighters as they battle a new breed of forest fires that are made more deadly by climate change.
Celebrities and journalists explore climate change around the world. In the opener, Harrison Ford investigates deforestation in Indonesia; Don Cheadle examines drought in Texas; and Thomas Friedman reports on stress caused by climate change in Syria.