Walden (pronounced /ˈwɔːldən/; first published as Walden; or, Life in the Woods) is a book written by Henry David Thoreau, an American philosopher and writer, in 1854. The book describes his life in a simple way in nature. It includes a statement about living independently, a test of living alone, a journey to find meaning, a way to point out problems in society, and, to some extent, a guide on how to depend on oneself.
Henry David Thoreau (born David Henry Thoreau; July 12, 1817 – May 6, 1862) was an American naturalist, writer, and philosopher. A key figure in the transcendentalist movement, he is most famous for his book Walden, which describes living simply in nature, and his essay Civil Disobedience (originally titled Resistance to Civil Government), which argues for refusing to follow unfair laws. Thoreau wrote more than 20 books, articles, essays, and poems.
A Sand County Almanac: And Sketches Here and There is a 1949 non-fiction book written by American scientist, forest expert, and environmentalist Aldo Leopold. The book describes the land near Leopold’s home in Sauk County, Wisconsin. The collection of essays supports Leopold’s idea of a “land ethic,” which is a way of caring for the land that people live on.
Aldo Leopold was born on January 11, 1887, and died on April 21, 1948. He was an American writer, philosopher, naturalist, scientist, ecologist, forester, professor, conservationist, and environmentalist. He taught at the University of Wisconsin and is best known for his book A Sand County Almanac (1949).
The Sierra Club is an environmental group in the United States with chapters in all 50 states, Washington D.C., and Puerto Rico. It was created in 1892 in San Francisco by John Muir, a person who worked to protect nature. The group was part of the progressive movement and was among the first large organizations worldwide to focus on preserving the environment.
John Muir ( / m jʊər / MURE ; April 21, 1838 – December 24, 1914), also called “John of the Mountains” and “Father of the National Parks,” was a Scottish-born American naturalist, writer, environmental thinker, botanist, zoologist, glaciologist, and early supporter of protecting wild areas in the United States. His books, letters, and essays about his experiences in nature, especially in the Sierra Nevada, have been read by millions of people. His efforts helped protect Yosemite Valley and Sequoia National Park.
Silent Spring is an environmental science book written by Rachel Carson. It was published on September 27, 1962. The book described the harm caused to the environment by the widespread use of DDT, a pesticide used by soldiers during World War II.
Rachel Louise Carson was born on May 27, 1907, and died on April 14, 1964. She was an American scientist who studied the ocean, a writer, and a person who worked to protect the environment. Her books, including a series of three ocean-related books written between 1941 and 1955, and Silent Spring (1962), helped increase awareness about protecting the ocean and the environment worldwide.