The program has involved over twenty expeditions into the arctic to study past movements of the arctic tree-line driven by climatic change, which now provides an important perspective and test for the ...

Growing trees in the Arctic could cause some of that carbon ... who live at the front line of climate change.

They measure three feet from nose to tail and weigh between six and 12 pounds. HABITAT: Arctic foxes live in Arctic and alpine tundra, in coastal areas, on ice floes, and north of the tree line. RANGE ...