Greta Thunberg (born 2003) is a Swedish climate activist who gained global recognition for her efforts to raise awareness about climate change and demand urgent action from world leaders. Thunberg began her activism at the age of 15 by skipping…

Ansel Adams (1902–1984) was an iconic American photographer and environmentalist, best known for his black-and-white landscape photography of the American West, particularly his images of Yosemite National Park. Adams’s work captured the grandeur and beauty of nature with unparalleled precision…

Edward Abbey (1927–1989) was an American author, essayist, and environmental activist known for his passionate defense of wilderness and critique of modern society. Abbey is best known for his novel The Monkey Wrench Gang (1975), which became a cult classic…

Wangari Maathai (1940–2011) was a Kenyan environmental and political activist, and the first African woman to receive the Nobel Peace Prize. She is best known for founding the Green Belt Movement in 1977, an environmental organization focused on tree planting,…

Aldo Leopold (1887–1948) was an American ecologist, forester, and environmentalist widely regarded as one of the most influential figures in the development of modern environmental ethics. Leopold is perhaps best known for his book A Sand County Almanac (1949), which…

John Muir (1838–1914) was a Scottish-American naturalist, environmentalist, and one of the most influential figures in the American conservation movement. Muir is best known for his advocacy for the preservation of wilderness areas, particularly in California. He co-founded the Sierra…

Rachel Carson (1907–1964) was a pioneering American marine biologist, conservationist, and author who is often credited with advancing the global environmental movement. Carson’s most influential work, Silent Spring (1962), exposed the dangers of widespread pesticide use, particularly DDT, and its…

United States v. Windsor (2013) was a landmark Supreme Court case that struck down the Defense of Marriage Act (DOMA), which defined marriage as the union between one man and one woman for federal purposes. The case involved Edith Windsor,…

Frontiero v. Richardson (1973) was a significant U.S. Supreme Court case that challenged gender discrimination in military benefits. The case involved Sharron Frontiero, a lieutenant in the U.S. Air Force, who sought to have her husband recognized as a dependent…

Reed v. Reed (1971) was a landmark U.S. Supreme Court case that was the first to declare a law unconstitutional based on gender discrimination. The case arose when Sally Reed and Cecil Reed, separated parents, were in dispute over the…