On December 1, NOAA released its annual Arctic Report Card. Like a yearly check-up at the doctor's office, the report summarizes conditions in the Arctic atmosphere, ocean, and on land.

Phytoplankton productivity has increased 20 percent over the past decade as sea ice extent declines and more open water habitat is available.

Satellite observations show that as the Arctic tundra has grown warmer in the past three decades, it has also grown “greener.”

In 2010, global temperatures were marked by near-record warmth and strong natural variability. This is the first in a series of posts highlighting findings from the "State of the Climate in 2010" report.

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