It's too cold outside, anyway.

Some bad news for the environment.

SAN FRANCISCO, California (AP) -- The northernmost reaches of the Earth are warming, reducing the sea ice across the Arctic Ocean, melting the ice sheet in Greenland and spreading shrubs into the Alaskan tundra, scientists said Saturday.

Taken individually, the changes only suggest the region's climate is undergoing a warming trend. Together, they provide dramatic evidence the change is real, a panel of scientists said during at a meeting of the American Geophysical Union.

When does saying we "shouldn't be alarmist" start to sound ridiculous?