The Arctic ice cap has shrunk by an area twice the size of France's land mass over the last two years, the Paris-based National Centre for Scientific Research (CNRS) said Wednesday. "The year 2008 promises to be a critical year on every level," said Jean-Claude Gascard, the body's research director and coordinator of European scientific mission Damocles, which is monitoring the effects of climate change across the Arctic.
September 2007 measurements show ice covering 4.13 million square kilometres (1.6 million square miles), down from 5.3 million square kilometres in 2005. "Melting could result in the loss of another million in one (2008) summer," he added at a press conference. "Summer 2007 was marked by a major retreat in the ice-cap, one we were not anticipating," Gascard said. "The rate of decline is also two or three times faster than (observed) beforehand."
International models used to predict retreating ice have some "catching-up" to do, he said.
Over the last 20 years, 40 percent of the ice-cap has melted with the average thickness halved from three to 1.5 metres. Year-round ice coverage has reduced, with summer melting also lasting longer, the centre reported.
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