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Arctic Ocean Begins Its Annual Melt At A Low Peak

If the surface area of sea ice in the Arctic is the same as it was at the beginning of last year’s record-breaking melt, but the ice is thinner than it was then, the conclusion is clear. There’s even less volume of ice in Arctic waters right now than there was at this time last year, meaning that less energy will be required to melt it down to last year’s record-low surface area. [...]

Arctic Ice Reaches September Minimum Volume: Only 4000 Cubic Kilometers Left, 9500 Cubic Kilometers Below Average

Earlier this week, the University of Washington’s Polar Science Center released its latest Arctic sea ice measurements to make them current as of September 15, 2010. The Polar Science Center uses a satellite to measure the three-dimensional volume of the Arctic sea ice (a approach different than that of the National Snow and Ice Data [...]

Surprise Late-Season Melt: Arctic Sea Ice Extent Falls Below 2008 Level

The melting of the Arctic sea ice literally crossed another line yesterday, as the area of Arctic sea ice fell below the level of two years ago:

The collapse of the Arctic sea this year is only surpassed by the calamity of 2007. The four lowest years of Arctic sea ice extent are the [...]

Double Dip: Arctic Ice Resumes Late Season Melt

Last week, the National Snow and Ice Data Center reported:

Arctic sea ice appears to have reached its annual minimum extent on 10 September. The minimum ice extent was the third-lowest in the satellite record, after 2007 and 2008, and continues the trend of decreasing summer sea ice.

But appearances can occasionally be deceiving. After [...]

Arctic Sea Ice Extent Nears 2010 Minimum, 4 SD below 1979-2000 Avg

The National Snow and Ice Data Center has released satellite data showing that with the extent of ice in the Arctic Ocean is nearing its yearly minimum, the area of the Arctic Ocean covered by ice is at its third lowest in the historical record:

The extent of ice in the Arctic Ocean is [...]

Arctic Ocean Climate News Roundup for October 2008

The climate of the Arctic Ocean is changing dramatically. A summary of findings from the past month:

Scientists have found methane plumes emerging from seabed permafrost north of Russia at rates 100 times higher than normal. The area of the Arctic Ocean that melted this year was the second-lowest ever, barely missing the massive record [...]