Leonardo DiCaprio, Mark Ruffalo & 14 Other Inspiring Environmentalist Celebs

Jessica Alba might be one of the biggest celebrity business success stories. She has built a billion dollar company in The Honest Company, which only stocks products that are non-toxic and support ethical and sustainable consumerism.

Matt Damon has made it a mission for every family and human being to have clean water. He co-founded Water.org with Gary White as a non-profit that is building and creating ways to keep water sanitation a priority for everyone. Damon is also host of PBS documentaries Journey To Planet Earth, which explores the effects climate change will have on our planet if we do not change our ways.

Penelope Cruz lent her support to Conservation International’s Nature is Speaking initiative, which released a series of short films that show that the Earth doesn’t need us, but we need her. She narrated the part of “water,” and joined other A-list celebs. She has also worked to encourage fellow celebs to use eco-friendly hybrid cars as transportations to red carpet events.

In 2011, Blanchett launched a project in her native Sydney, Australia that would be the world’s largest rainwater harvesting system. After supporting a carbon tax to limit gas emissions, she explained, ”Everyone will benefit if we protect the environment. There is a societal cost of increased pollution and that’s what I’m passionate about as a mother. That’s where it gets me in the gut. I can’t look my children in the face if I’m not trying to do something in my small way and to urge other people," according to her website.

Maroon 5 are one of the biggest music acts that have committed to eco-friendly tactics in their tour life and concerts. They are also some of the founding members of the Green Music Group, which promotes eco-friendly life choices, and they headlined the Greenbuild International Conference & Expo in 2011.

Bündchen is on the board of directors for the Rainforest Alliance. Since 2009, she has served as an ambassador for United Nations’ environment program and she also has also launched her own line of eco-friendly flip-flops with Brazilian brand, Ipanema.

Jared Leto has committed to a life of veganism. He and his band, 30 Seconds to Mars, filmed a video for their song “A Beautiful Lie” to bring attention to global warming. The video was filmed over the Arctic Circle and featured facts about climate change. Leto said at the time, “We all know by now that our planet is in deep trouble. We have abused it horribly and we are paying the price. It’s time to try to do what we can, both as individuals and collectively, to find better and kinder ways to live. It’s not our right; it’s our responsibility. We are all guilty. We can all change,”

Portman is mostly known for being a very big supporter of living cruelty-free, especially in keeping a vegan diet. In addition, she partnered with fashion brand Te Casan to create a line of vegan footwear, the proceeds from which were donated to The Nature Conservancy. She also took part in an Animal Planet documentary, Gorillas on the Brink, in which she traveled to Rwanda to highlight the threats to the gorilla population caused by humans.

Cameron Diaz first showed off her passion for the Earth when she hosted the MTV environmental documentary, Trippin’, where she focused ecology and conservation of various countries around the world. She also has driven the hybrid Prius since it came out and has her hand in many other ventures, such as contributing to The Green Book.

I was truly surprised by this fact, but for his first solo tour in 2010, Drake made sure his entire tour would be eco-friendly, and he showcased various national and college campus-based green conscious groups.

I remember watching The Cove documentary and being impressed with seeing Panettiere out there in the ocean with her paddle board to protect the dolphins. She is very active in the Whaleman Foundation, an oceanic research and conservation group. In 2013, she earned a Futures awards at the Environmental Media Awards for her work in ecological causes.

Harrison Ford is a vice chair for Conservation International, which aims to protect all facets of the environment. In 2008, he was the face of the CI campaign against deforestation. He has won various awards throughout the years for his efforts, including the World Ecology Award from the International Center for Tropical Ecology.

Silverstone is a strong champion for a vegan diet and an anti-animal product lifestyle. She wrote a book, The Kind Diet: A Simple Guide to Feeling Great, Losing Weight, and Saving the Planet, which gave tips on living an Earth friendly life. She also supports many charities, including Animals Asia, Waterkeeper Alliance, and Farm Sanctuary, among others.