Kerry Urges World Leaders to Act on Climate Change

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John Kerry’s Four Decades of Raising Climate Awareness on the World Stage03:04

John Kerry’s Four Decades of Raising Climate Awareness on the World Stage

Leonardo DiCaprio Talks With John Kerry About America's Future And Climate Change02:23

Leonardo DiCaprio Talks With John Kerry About America's Future And Climate Change

Watch: Secretary of State John Kerry on Libya00:30

Watch: Secretary of State John Kerry on Libya