Arctic Explorers to Track Sea Ice Melt
LONDON (Reuters) – Three British polar explorers will set off from Alaska early next year on a trek to the North Pole to try to establish when Arctic summer sea ice will finally vanish because of global warming.
The sea ice is already receding at a rate of 300,000 square kilometers (115,000 square miles) a year — equivalent to the area of the British Isles — but despite some submarine and satellite measurements there is no accurate measure of how rapidly it is also thinning.

