Start Date: End Date: Published Date Data Date
Arctic Sea Ice Maximum 2012
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Published March 27, 2012
The extent of Arctic sea ice peaked at 15.24 million square kilometers on March 18, 2012. It was the ninth consecutive year of maximum extents below the long-term average.
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Oldest Arctic Sea Ice is Disappearing
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Published March 1, 2012
Thick ice that used to last through multiple summers has been in steep decline for three decades.
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Arctic Sea Ice
Published May 3, 2011
Sea ice naturally grows and melts each year, but the process has been more extreme in recent years.
Melt Season in the Arctic Getting Longer
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Published January 29, 2010
Satellite data revealed changes in the average start of spring melting and the first autumn freeze.
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Arctic Sea Ice Younger than Normal
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Published March 25, 2008
In the Arctic, sea ice extent fluctuates with the seasons. It reaches its peak extent in March, near the end of Northern Hemisphere winter, and its minimum extent in September, at the end of the summer thaw. In September 2007, Arctic sea ice extent was the smallest area on record since satellites began collecting measurements about 30 years ago.
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