Rising temperatures have brought a longer growing season in the high latitudes. Once-treeless tundra ecosystems have greened the most, while boreal forests had a more mixed response.
Published Mar 14, 2013
Tree and plant cover has deteriorated considerably in some areas, while advancing in other areas that previously burned or used to be frozen.
Published Jul 27, 2020
New research shows shrubs and other plants infiltrating the countryside and advancing northward in Quebec.
Published Dec 10, 2011
For more than two decades, satellites have been observing seasonal patterns of Earth's vegetation. In eastern North America, the spring “green up” is one of the most dramatic changes satellites observe.
Published Sep 15, 2007
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