Articles tagged "northern hemisphere temperatures"

arctic sea ice change 1979 present 110309

2011: Headed for record Arctic melt?

This year could be well on its way toward earning a dubious spot in the record books.Arctic sea ice has melted away with astonishing speed in the first half of July, at an average rate of about 46,000 square miles (120,000 square kilometers) per day, according to the Na

July 22, 2011