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Transpire Locally, Cool Globally

As plants grow, they transpire, releasing water into the atmosphere.  During the summer in a city, trees help to cool the immediate surroundings through transpiration. New research from Carnegie’s Global Ecology department, published last month in Environmental Research Letters, concludes that transpiration has a global effect as well. How does this happen?  Water vapor is […]

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Raising the water table the natural way

Today’s Wall Street Journal ran a story about using beavers to raise the water table and rehabilitate natural areas.  Beavers?  How can beavers do this? Photo by Walter Siegmund Beaver dam of Hat Lake and Hat Creek in foreground.  Bridge over Hat Creek on highway 89, Lassen Volcanic National Park. http://en.wikipedia.org/wiki/File:BeaverDam_8409.jpg Beavers are rodents that live […]

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