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One month away from COP21
In less than one month, world leaders will gather in Paris in hopes of reaching a historic agreement to lower carbon emission and get control of global warming. Assistant Secretary-General on climate change, Janos Pasztor, joins Greenhouse to discuss.
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The fight against oil drilling in the Gulf03:49
Transforming trash into incredible tiny homes05:04
Parts of Patagonian glacier collapse00:46
How land grabbing could affect parks07:08
How religion clashes with science06:41