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Thoreau's Walden Pond Shows Effects Of Global Warming, Invasive Species On Area Today

First Posted: 04/13/10 06:12 AM ET Updated: 05/25/11 04:30 PM ET


Scientific American:

Henry David Thoreau famously catalogued the plants around Walden Pond more than 150 years ago, and the information he gathered then is helping to illustrate the effects of invasive species and global warming on the area today.

Read the whole story: Scientific American


Filed by Gazelle Emami  |