Thoreau, viewed as a scientist

primack-thoreau1Boston Globe (subscription required)
Richard Primack, College of Arts & Sciences

The annual rituals of nature — the date when the marsh marigold first unfurls its yellow petals or when the common alder pushes out its leaves — are among the most sensitive indicators of climate change…

Expert quote:

“As far as I know, there is more information about the effect of climate change in Concord than any other place in the United States.”

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