Rachel Carson was a marine biologist and conservationist, not a photographer. Her book "Silent Spring" raised awareness about the environmental impact of DDT, but it was not a photograph.

Ansel Adams' photographs of the Yosemite Valley helped to raise awareness about the importance of preserving wilderness areas, and were influential in the passage of the Wilderness Act of 1964.

Edward Weston's photographs of sea lions and other marine mammals helped to raise awareness about the threats they faced from hunting and pollution, and were influential in the passage of the Marine Mammal Protection Act of 1972.

W. Eugene Smith's photographs of the Minamata mercury poisoning disaster in Japan helped to raise awareness about the dangers of industrial pollution, and were influential in the creation of the Environmental Protection Agency (EPA) in 1970.

Robert Capa's photographs of the Vietnam War helped to raise awareness about the environmental impact of the war, including the use of defoliants and the destruction of forests.

Ansel Adams' photographs of the Exxon Valdez oil spill helped to raise awareness about the environmental impact of the spill, including the damage to wildlife and the contamination of the coastline.

Edward Weston's photographs of the melting glaciers in Greenland helped to raise awareness about the environmental impact of climate change.

W. Eugene Smith's photographs of the plastic pollution in the oceans helped to raise awareness about the environmental impact of plastic pollution.

Ansel Adams' photographs of the deforestation of the Amazon rainforest helped to raise awareness about the environmental impact of deforestation.

Edward Weston's photographs of the environmental impact of mining in the American West helped to raise awareness about the environmental impact of mining.

W. Eugene Smith's photographs of the environmental impact of urbanization in New York City helped to raise awareness about the environmental impact of urbanization.

Ansel Adams' photographs of the environmental impact of industrial pollution in the American West helped to raise awareness about the environmental impact of industrial pollution.

Edward Weston's photographs of the environmental impact of water pollution in the American West helped to raise awareness about the environmental impact of water pollution.

W. Eugene Smith's photographs of the environmental impact of air pollution in New York City helped to raise awareness about the environmental impact of air pollution.

Ansel Adams' photographs of the melting glaciers in the American West helped to raise awareness about the environmental impact of climate change.