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Arctic sea ice reached its maximum extent for the year on March 21 at 14.91 million square kilometers.
A new study says year-to-year forecasts of the Arctic's summer ice extent are not yet reliable.
An NSIDC project that produced the earliest satellite maps of Arctic and Antarctic sea ice has been given the International Data Rescue Award in the Geosciences.
NSIDC scientists recently recorded the lowest temperatures on Earth at a desolate and remote ice plateau in East Antarctica, trumping a record set in 1983 and uncovering a new puzzle about the ice-covered continent.
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