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paris cop21 climate change summit preps dnt_00021705
paris cop21 climate change summit preps dnt_00021705

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    Nations prepare for Paris Climate Summit

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Nations prepare for Paris Climate Summit

World leaders to gather in Paris for a new round of talks on climate change. CNN's Jim Bittermann reports.

Nations prepare for Paris Climate Summit

World leaders to gather in Paris for a new round of talks on climate change. CNN's Jim Bittermann reports.