Melting glaciers, drier wetlands, warmer winters in Alaska, where global warming is felt most keenly.
Researchers track China’s plume of pollution. What effect did Olympic hiatus have?
Pentagon refuses to clean up toxic military bases, saying it would set a bad precedent.
A report by the US Geological Survey found that the region inside the Arctic Circle contains just over one-fifth of the world's undiscovered, recoverable oil and natural-gas resources.What does this mean for our energy needs, and for the planet?
See how many of these 'green' things you can guess.