Researcher Sees Biological Regime Change Under Way in Alaska

This article talks about how the recent extreme and quick climate changes have affected the Alaskan wilderness.  As the Earth keeps warming up, the forests of Alaskan are moving further and further North, and lessening the cold tundra that covers most of the state.  Researchers are trying to answer the question of whether or not the climate change is pushing Alaska towards another major biome shift, just like the one they saw many years ago when it essentially turned into a tundra.