Plants of the alpine skypilot, Polemonium viscosum, occur from timberline to the highest ridgetops and summits of the Rocky Mountains, USA. To investigate the importance of herbivory in determining ...

Tundra plants can eek out an existence in the very short summers of the Canadian High Arctic such as here on Ellesmere Island, Nunavut. (Anne Bjorkman, University of Gothenburg) Rapid climate change ...

Shrub expansion has occurred across much of the arctic tundra over the past century. Increasing dominance of woody vegetation is expected to have global influences on climate patterns and lead to ...

Green summer tundra and the rolling Mulgrave Hills in northwestern Alaska's Cape Krusenstern National Monument are seen on July 11, 2011. The Mulgrave Hills are the farthest west extension of the ...

Harry Fuller escaped from television work to be executive editor at CNET News.com. Canadian researchers predict that climate change will be good for trees, but bad for tundra. They've studied tree ...