19 Dec '12, 3pm

Scientists See Big Impacts on U.S. Ecosystems from Global Warming

Biodiversity and ecosystems are already more stressed than at any comparable period of human history. Climate change almost always exacerbates the problems caused by other environmental stressors including: land use change and the consequent habitat fragmentation and degradation; extraction of timber, fish, water, and other resources; biological disturbance such as the introduction of non-native invasive species, disease, and pests; and chemical, heavy metal, and nutrient pollution. As a corollary, one mechanism for reducing the negative impacts of climate change is a reduction in other stressors. Climate change is causing many species to shift their geographical ranges, distributions, and phenologies at faster rates than previously thought. Changes in terrestrial plant and animal species ranges are shifting the location and extent of biomes, and altering ecosystem structu...

Full article: http://dotearth.blogs.nytimes.com/2012/12/19/scientists-s...

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Scientists See Big Impacts on U.S. Ecosystems f...

dotearth.blogs.nytimes.com 19 Dec '12, 3pm

Biodiversity and ecosystems are already more stressed than at any comparable period of human history. Climate change almos...

Dot Earth Blog: Scientists See Big Impacts on U...

dotearth.blogs.nytimes.com 19 Dec '12, 3pm

Biodiversity and ecosystems are already more stressed than at any comparable period of human history. Climate change almos...

Dot Earth Blog: Scientists See Big Impacts on U...

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