Climate Change, Arctic

Vast cracks appear in Arctic ice
A Canadian research expedition finds dramatic evidence of the break-up of the Arctic ice-cap.
http://news.bbc.co.uk/go/em/-/2/hi/science/nature/7417123.stm

Methane rise points to wetlands
Rising levels of the greenhouse gas methane could be caused by changes in wetlands, largely around the Arctic.
http://news.bbc.co.uk/go/em/-/2/hi/science/nature/7408808.stm