Arctic ice meltdown remains severe: Scientist

Studies suggesting the Arctic sea ice has made a modest recovery following its record-setting retreat in 2007 are misleading and underestimate the severity of the polar meltdown, says one of Canada's top ice scientists. David Barber, Canada Research Chair in Arctic System Science at the University of Manitoba, says satellite images used to track the overall extent of Arctic ice don't adequately perceive how weak and "rotten" the region's older, thicker, multi-year ice cover has become. His findings, to be published in the journal Geophysical Research Letters, suggest a transformative change in Arctic ecosystems is accelerating and that safe shipping in polar waters during the summer and fall will begin much sooner than many experts predict. "In 2008 and 2009 satellite data showed a growth in Arctic sea ice extension leaving some to reckon global warming was reversing," states a summary of the research. "Contrary to what satellites recently suggested, we are actually speeding up the loss of the remaining, healthy, multi-year sea ice."...read more