Arctic ozone loss at record level

posted by
October 2, 2011
BBC News [UK]    
Posted in News, PND News

"Ozone loss over the Arctic this year was so severe that for the first time it could be called an 'ozone hole' like the Antarctic one, scientists report. About 20km (13 miles) above the ground, 80% of the ozone was lost, they say. The cause was an unusually long spell of cold weather at altitude. In cold conditions, the chlorine chemicals that destroy ozone are at their most active. It is currently impossible to predict if such losses will occur again, the team writes in the journal Nature." (10/02/11)  

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