Walden pond thoreau7/5/2023 “Canna lilies, fringed orchids, lady's tresses, buckbeans, trilliums, bush clovers, mountain mint, purple bladderwort.” We met Primack on a recent warm and sunny morning at Walden Pond, where as we headed out for a walk he ticked off some of the plant species that have disappeared in this area since Thoreau wrote about them in his 1850s book titled "Walden." His notes are helping scientists like Boston University biology professor Richard Primack study climate change. But it's his role as a naturalist and an avid record-keeper that makes him a hero to many scientists. Thoreau's individualist views and distaste for government make him a hero to many people across the political spectrum. Today is the 200th birthday of author, activist and abolitionist Henry David Thoreau. (Robin Lubbock/WBUR) This article is more than 5 years old. Biologist Richard Primack uses Henry David Thoreau’s records from his time living on Walden Pond to look for effects of climate change on area wildlife.
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