Walden Warming: Climate Change Comes To Thoreau's Woods

Paperback | May 25, 2015

byRichard B. Primack

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In his meticulous notes on the natural history of Concord, Massachusetts, Henry David Thoreau records the first open flowers of highbush blueberry on May 11, 1853. If he were to look for the first blueberry flowers in Concord today, mid-May would be too late. In the 160 years since Thoreau’s writings, warming temperatures have pushed blueberry flowering three weeks earlier, and in 2012, following a winter and spring of record-breaking warmth, blueberries began flowering on April 1—six weeks earlier than in Thoreau’s time. The climate around Thoreau’s beloved Walden Pond is changing, with visible ecological consequences.
           
In Walden Warming, Richard B. Primack uses Thoreau and Walden, icons of the conservation movement, to track the effects of a warming climate on Concord’s plants and animals. Under the attentive eyes of Primack, the notes that Thoreau made years ago are transformed from charming observations into scientific data sets. Primack finds that many wildflower species that Thoreau observed—including familiar groups such as irises, asters, and lilies—have declined in abundance or have disappeared from Concord. Primack also describes how warming temperatures have altered other aspects of Thoreau’s Concord, from the dates when ice departs from Walden Pond in late winter, to the arrival of birds in the spring, to the populations of fish, salamanders, and butterflies that live in the woodlands, river meadows, and ponds. 
           
Primack demonstrates that climate change is already here, and it is affecting not just Walden Pond but many other places in Concord and the surrounding region. Although we need to continue pressuring our political leaders to take action, Primack urges us each to heed the advice Thoreau offers in Walden: to “live simply and wisely.” In the process, we can each minimize our own contributions to our warming climate.

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In his meticulous notes on the natural history of Concord, Massachusetts, Henry David Thoreau records the first open flowers of highbush blueberry on May 11, 1853. If he were to look for the first blueberry flowers in Concord today, mid-May would be too late. In the 160 years since Thoreau’s writings, warming temperatures have pushed b...

Richard B. Primack is professor of biology at Boston University. He is the author of Essentials of Conservation Biology and A Primer of Conservation Biology and coauthor of Tropical Rain Forests: An Ecological and Biogeographical Comparison. He lives in Newton, Massachusetts.

other books by Richard B. Primack

Format:PaperbackDimensions:272 pages, 9 × 6 × 1 inPublished:May 25, 2015Publisher:University Of Chicago PressLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:022627229X

ISBN - 13:9780226272290

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Extra Content

Table of Contents

Preface

1. Borneo to Boston

2. A Hard Rain

3. Thoreau, Scientist

4. Phantom Plants

5. Wild Apples and Other Missing Flowers

6. The Strife in Loosestrife

7. The Message of the Birds

8. Birds in the Mist (Net)

9. Bees and Butterflies

10. From Insects to Fish to People

11. Clouds of Mosquitoes

12. The Frog Chorus

13. Running in the Sun and Rain

14. A New Earth

Afterword: Citizen Science

Append: Species Mentioned

Acknowledgments

Further Reading

Index

Editorial Reviews

“Thoreau, in Walden, proposed a ‘realometer’ to filter out prejudice and delusion. This eloquent new book fills that role for us, reminding us that global warming is not an abstract future proposition but a very profound current reality.”