Sting is a musician and activist who has been a vocal advocate for environmental protection. He has used his music and public appearances to raise awareness about environmental issues and has supported various organizations working to protect the environment.

Sting founded the Rainforest Foundation in 1989 to support indigenous peoples and protect rainforests. The organization works to promote sustainable development, protect biodiversity, and combat climate change.

Yoko Ono released the album \"Earth\" in 1990, which featured songs about environmental issues and featured collaborations with other musicians and activists. The album was intended to raise awareness about environmental problems and promote action to protect the planet.

Bono, the lead singer of the band U2, was one of the main organizers of the \"Live Earth\" concerts. He used his platform as a musician to raise awareness about climate change and encourage action to address it.

Bjork is a musician and activist who has been involved in the \"Global Cool\" campaign since its launch in 2007. She has used her music and public appearances to raise awareness about climate change and promote sustainable living.

Dave Matthews founded the \"Sweet Relief Musicians Fund\" in 1993 to provide financial assistance to musicians in need. The organization has provided millions of dollars in grants to musicians facing medical emergencies, natural disasters, and other hardships.

Linkin Park is a band that founded the \"Music for Relief\" organization in 2005. The organization has provided aid to victims of natural disasters around the world and has also supported environmental protection efforts.

Mark Johnson is a musician and producer who founded the \"Playing for Change\" foundation in 2002. The organization uses music to promote peace and understanding among people from different cultures. It has produced several albums and documentaries featuring musicians from around the world.

Don Henley is a musician and activist who founded the \"Artists Project Earth\" organization in 1990. The organization uses art and music to raise awareness about environmental issues and promote sustainable living. It has produced several albums and documentaries featuring musicians and artists from around the world.

Bruce Springsteen is a musician and activist who has been involved in the \"Rock the Vote\" campaign since its launch in 1990. He has used his music and public appearances to encourage young people to register to vote and participate in the political process.

Dave Matthews is a musician and activist who founded the \"HeadCount\" organization in 2004. The organization encourages people to register to vote at concerts and music festivals. It has registered millions of voters since its launch.

Bruce Springsteen is a musician and activist who was involved in the \"Vote for Change\" campaign in 2004. He used his music and public appearances to encourage people to vote in the US presidential election.

Brad Pitt is an actor and activist who founded the \"Make It Right\" foundation in 2007. The foundation builds affordable housing for people in need. It has built homes in New Orleans, Louisiana, and Newark, New Jersey.

Bono is a musician and activist who is involved in the \"Global Poverty Project\", which aims to end extreme poverty around the world. He has used his music and public appearances to raise awareness about poverty and to advocate for policies to address it.