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Winter Arctic sea ice near record low
Winter Arctic sea ice this year was the second smallest area on record in a sign of greenhouse warming, US climate scientists said . Sea ice extent, or the area of ocean that is covered by at least 15 percent ice, was14.7 million sq km in March, the Colorado-based National Sea and Ice Data Center said . March usually marks the end of winter in the Arctic, a period when sea ice recovers from the summertime minimum.
This March?s ice level represented a slight recovery from the record low during the same month last year when the ice extent was 14.5 million sq km. But low sea ice levels this winter ? the world?s warmest on record, according to the US government ? are part of a trend toward less ice.
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