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new england

new england

Climate Change, with Help from Henry David Thoreau

4y ago


For several years, Richard Primack has been prowling Walden Pond in Concord, Mass., chronicling spring's curtain-riser, the arrival of leaves and buds, the same details Henry David Thoreau carefully recorded a century and a half ago. Primack, a College of Arts & Sciences biology professor, who pioneered the study of the effects of climate change on New England, has used Thoreau's records to confirm that leaf-out arrives earlier today than it did then—a barometer of global warming. Read the full story on BU Today: