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....

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...

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...

In the Rocky Mountains, as in many mountain ranges worldwide, snowpack is getting dirtier. Winds carry fine sediment particles from arid regions, and dust lofted high enough into the atmosphere...

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

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