Permafrost, ground frozen for at least two years underlying the cold Arctic and alpine regions of the Northern Hemisphere, covers about 17% of the global land surface and stores an estimated one-third ...

Rapid climate change is upending plant communities in the Arctic, with species flourishing in some areas and declining in others, according to a new study in Nature. The decades-long investigation, ...

Niwot Ridge is a place of grandeur. The mountains are tall and steep. The sky is bright and open. In this land, most people instinctively look up and out. A research group from the University of ...