Heat
(VIDEO - 50 mins.) Melting glaciers, rising sea levels, fires, floods and droughts. On the eve of a historic election, award-winning producer and correspondent Martin Smith investigates how the world's largest corporations and governments are responding to Earth's looming environmental disaster.
"I have reported on the Cold War, the breakup of the Soviet Union, the rise of Al Qaeda, and the wars in Iraq and Afghanistan," says Smith. "But nothing ...
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