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Report: Big companies are the biggest polluters
Tim Nixon from Reuters explains why the 500 biggest companies of the world are now producing more greenhouse gases than they were in 2010.
Reading, writing, berries! School gardening03:59
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