Natural Resources Defense Council is one of the leading environmental action organizations in the United States. The organization focuses on protecting wildlife and wild places, and ensuring a safe and healthy environment for living beings. It has more than 1.2 million members working for several programs. Natural Resources Defense Council offers a variety of programs in a range of areas, including air pollution, energy, transportation and cleanliness of vehicles, global warming, and cleanliness of water and oceans. The organization also works in several other areas, such as marine life, parks, forests, land use and abuse, health and environment, nuclear weapons, and water and energy. Natural Resources Defense Council provides various publications in areas, including cities and green living, environmental justice, international issues, and laws and policies in the United States.