Charlie Gibson reports on ABC's Earth 2100, a documentary on climate change that will air June 2, 2009, and feature footage from the CNAS Clout and Climate War Game.
Set in the year 2015, the game tested what would happen if the world’s four greatest greenhouse gas emitters in 2015 (China, the European Union, India, and the United States) met in an emergency session to find ways to deal with the mounting consequences of climate change and avoid a catastrophic future.
Watch the Charles Gibson report here.
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