Going Green: Eight Celebrities Who Are Environmental Advocates
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But long before he was trapped in the the "Red Planet," Damon already knows the importance of water.
He founded Water.org, an international non-profit organization that advocates the availability of clean, safe and cost-effective water in the world. The organization invests on state-of-the-art water technology projects in search for new solutions for a lasting change.
Damon also hosted "Journey to the Planet Earth," a PBS series of environmental documentaries that tackle the current and projected state of the Earth. (Photo:Jason Merritt/Getty Images)
He is the producer of the eco-themed TV Program “The Green,” which discusses issues such as wilderness preservation and solar energy.
(Photo:Jason Merritt/[Getty Images for Sundance Film Festival])
Sting supports more than 40 charities including Amazon Watch, Environmental Investigation Agency, Live Earth, Rainforest Foundation Fund, UNICEF, Walden Woods Project and Oceana.
Sting, together with his wife Trudie Styler, founded The Rainforest Foundation UK to help save rainforests in South America. (Photo:Matt Winkelmeyer/[Getty Images for Sundance Film Festival])
She was arrested no fewer than three times for her actions for environment. She is the co-founder of Sustainable Biodiesel Alliance, and also serves as a board member of the Environmental Media Association, Action Sports Environment Coalition and ecoAmerica. (Photo:Frederick M. Brown/Getty Images)
Ruffalo is a strong advocate of renewable energy. He is part of the Board of Directors of The Solutions Project that accelerates the transition to 100% clean and renewable energy for all people and purposes.
He also founded the Water Defense, a non-profit organization dedicated to clean water. (Photo: Kevin Winter/Getty Images)
Together with other moms, Streep created the Mothers & Others to support the Natural Resources Defense Council in reporting the weaknesses in pesticide regulation used in food production.
She also supports The Rainforest Foundation UK, a non-profit organizations aiming to protect rain forests, and was founded by musician Sting and his wife.
(Photo: Pascal Le Segretain/Getty Images)
In Pitt's case, with his passion for architecture, he started a group of experts in New Orleans to build environment-friendly structures through sustainable architecture and design.
The group was called The Make It Right Foundation, a non-profit organization committed to the object of financing and constructing 150 new houses in New Orleans’ Ninth Ward. (Photo:Astrid Stawiarz/Getty Images)
DiCarpio is a well-known environmentalist and has received various awards and honors for his efforts in preserving the environment.
He founded the Leonardo DiCarpio Foundation, a non-profit organization that actively fosters awareness of environmental issues through participation with different organizations, such as Natural Resources Defense Council, Global Green USA, the International Fund For Animal Welfare and National Geographic Kids. (Photo:Pascal Le Segretain/Getty Images)