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Warming trends may allow woody plants to grow at higher elevations, threatening the fragile, alpine plants already there  

Did You Know?
Nearly 500 vegetation plots have been installed in Denali, to monitor climate change. Warmer temperatures allow woody plants to grow at higher elevations, invading the fragile and unique plants already in high alpine tundra - and threatening the animals that depend on those specialized plants.

Last Updated: May 28, 2009 at 22:35 EST