Research

Is the Arctic Ocean a carbon sink?

We’ve all heard it: Arctic sea ice is melting. Sea ice is thinner year to year and there is less of it. In 2007, scientists observed a nearly 50 percent loss of summer ice as compared to 1980....

The Karakoram Anomaly: Is it real?

In recent years with sharp summer sea ice decline, the Arctic seems more sensitive to climate warming than elsewhere on Earth. But are other frozen features of Earth changing too? Notably, most of...

Is declining sea ice changing the atmosphere?

Although Arctic sea ice extent did not set a low record this year, it’s still clear that there is less sea ice than there used to be. Scientists are keeping a close eye not only on the dwindling...

Does dusty snow mean less water in the Rockies?

Have you been skiing in the Western U.S. and been surprised by brown snow? We recently talked to a research team that studies these coats of dirt. The dust storms that cause dusty snow appear to be...

Core of climate history

Scientists take ice core samples in cold, windy, and forbidding environments. After drilling through solid ice to...

NSIDC at AGU

Ira Flatow, host of National Public Radio’s Talk of the Nation: Science Friday, spoke at the AGU Presidential Forum,...

What is causing Arctic sea ice decline?

The Arctic Ocean has lost more than 30 percent of its summer ice cover in the last thirty years. Scientists have...

Modeling the Arctic climate

In February, polar climate researchers gathered at the National Center for Atmospheric Research in Boulder, Colorado to discuss the newest updates to models of...

Climate change or variability: What rules Arctic sea ice?

This photo, taken during the NASA ICESCAPE mission in summer 2011, shows melt ponds on the surface of...

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