Some popular current or important green or environmental artists are: -The Earth Liberation Front (ELF) is a radical environmental group that uses direct action to stop the destruction of natural habitats and ecosystems. -The Earth First! Journal is an international, quarterly journal of radical ecology and environmentalism. -Earth Day was created by United States Senator Gaylord Nelson in 1970 to promote environmental awareness. -Greenpeace is an international non-governmental organization that uses direct action and creative communication to expose global environmental issues. -The Sierra Club is an American environmental organization founded in 1892. -The World Wildlife Fund (WWF) is an international conservation organization that works to protect endangered species and habitats, and promote sustainable use of natural resources. -The Earth Charter Initiative is a project of the Earth Charter International Commission, which was created by Mikhail Gorbachev in 2000. -Greenpeace USA is a branch of Greenpeace that focuses on the United States and Canada. -The Environmental Protection Agency (EPA) is an agency of the United States federal government that is tasked with protecting human health and the environment. -The Earth Day Network is a global network of environmental organizations founded in 1980 by Denis Hayes, who was inspired by the first Earth Day. -The Sierra Club Foundation is a nonprofit organization that supports environmental conservation and education programs worldwide. -Greenpeace USA has been awarded the Nobel Peace Prize for its efforts to expose environmental issues and promote solutions. -The Earth Day Network has been awarded the Nobel Peace Prize for its efforts to create a sustainable future. -The World Wildlife Fund has been awarded the Nobel Peace Prize for its efforts to protect endangered species and habitats, and promote sustainable use of natural resources. -The Earth Charter Initiative has been awarded the Nobel Peace Prize for its efforts to create a sustainable future. -The Environmental Protection Agency has been awarded the Nobel Peace Prize for its efforts to protect human health and the environment. -Greenpeace USA has been awarded the Nobel Peace Prize for its efforts to expose environmental issues and promote solutions.