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    2015: The year the world acts on climate change?

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2015: The year the world acts on climate change?

Imagine a world where people stop arguing and start acting on climate change. Could this be the year? CNN's Fred Pleitgen has the story.

2015: The year the world acts on climate change?

Imagine a world where people stop arguing and start acting on climate change. Could this be the year? CNN's Fred Pleitgen has the story.