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Leonardo DiCaprio
Leonardo DiCaprio is not afraid to flex his environmental muscle. The actor has marched alongside other celebrities like Mark Ruffalo and Brad Pitt at the People's Climate March. And most recently, he has teamed up with Mexico’s President and its richest man to save critically endangered porpoises in the Gulf of Mexico. In addition, the United Nations honoured him with the title of Messenger of Peace on Climate Change.
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Hayden Panettiere
The "Nashville" star, Hayden Panettiere, is the International Spokesperson for the Whaleman Foundation, a foundation that dedicates their time to preserving and protecting the ocean and its inhabitants. For her actions, she was awarded the Futures Award by the Environmental Media Association.
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Pierce Brosnan
The former James Bond was inducted into the Environmental Hall of Fame for campaigning against illegal whale hunting and wetland protection. He was also named Best-Dressed Environmentalist by the Sustainable Style Foundation. Nice work, 007.
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Mark Ruffalo
Mark Ruffalo may play a green Hulk, but he's also practicing green actions. The actor started a campaign to ban hydrofracking , a controversial method of natural gas extraction. Thanks to his actions, Global Green awarded Marks with an Environmental Leadership award.
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Ben Affleck
Benny’s come a long way since he reportedly bought a Chinchilla coat for JLo back in the day. Now our boy tweets about clean water initiatives and recently founded The Eastern Congo Initiative, which raises awareness of threatened natural resources in the region.
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Drew Barrymore
As well as being an outspoken animal activist, Drew also founded Flower Beauty -- an eco-friendly makeup line that’s made in the U.S. to avoid the environmental impact of shipping and transport.
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Neil Young
Canada’s own music man has been touting green values since way before it was ‘cool’. Neil wrote an entire album about his electric car, regularly campaigns against oil sands developments and donated $100,000 to David Suzuki’s Blue Dot Initiative.
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Daryl Hannah
Talk about taking one for the team. The “Splash” star (and Neil Young’s paramour) has been arrested more than once for protesting developments that harm the environment. She also makes her own green lifestyle video blog called dhLoveLife.
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Alicia Silverstone
The not-so “Clueless” vegan is often seen loading up on veggies at her local farmers’ market. And she recently wrote an op-ed piece for Newsweek about how “our rapidly growing dependence on animals as a food source is one of the greatest threats to the climate.”
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Ed Begley Jr.
The “St. Elsewhere” star often shows up at big Hollywood events on a bike. He’s also written two books on sustainable living, appeared on “The Simpsons” in a non-polluting go-kart and made a web series about building North America’s greenest, most sustainable home (his own, of course).
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Robert Redford
The Sundance Film Fest founder has been a trustee of the Natural Resources Defense Council since the '70s. He also launched The Redford Conservancy to help educate university students about sustainability and recently spoke about climate change at the UN. Not too shabby.
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Arcade Fire
Expect to see a whole ton of recycling at an Arcade Fire show. The Montreal Grammy winners joined forces with non-profit REVERB to decrease the amount of waste produced during their concerts. They’re also supporters of the Leap Manifesto initiative calling for "a Canada based on caring for the earth and one another."
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Shailene Woodley
This rising star does what she can to help keep our Earth clean. Shailene Woodley says that 97 per cent of her clothes are from thrift stores and gathers her water from fresh springs when she gets the opportunity. Her response to religion? "My religion is the Earth, man. I believe in trees," she told The Hollywood Reporter.
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Adrien Grenier
Not just a pretty face, Mr. Entourage has campaigned for endangered bluefin tuna, launched an eco-themed app and partnered with Uber in a mission to recycle tech waste.
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Jamie Oliver
Not only does Britain’s most famous chef want more people to grow their own food, he’s given up eating meat three days a week, and one of his restaurants is powered by rooftop wind turbines. Cracking!
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Rosario Dawson
This gorgeous do-gooder founded Studio One Eighty Nine, which uses fashion to implement social change and eco-friendly practices. She also urges her massive social media following to pay attention to environmental concerns for the food industry, including the Equitable Food Initiative, a project geared towards producing healthier fruits and vegetables.
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Jack Johnson
The Hawaiian-born singer donated 100 per cent of his profits from two tours to environmental charities, started the Johnson Ohana Charitable Foundation and recorded his fifth album in solar-powered studios.
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Kevin Costner
Good ol’ Kev has invested a whole pile of cash into a machine that cleans up oil spills by separating the oil from the water.
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Emma Watson
When little Hermione isn't studying spells, she's saving the world. In 2011, Emma Watson collaborated with designer Alberta Ferretti to create an eco-friendly clothing line, Pure Threads. The clothes were made from raw, sustainable materials from Italy. In the future she hopes to create an all natural makeup line.
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Woody Harrelson
Woody Harrelson eats, sleeps, and breathes "green." The actor is a raw vegan which means he doesn't eat sugar, flour, dairy, or meat. He also co-founded the paper company "Prairie Paper" which specializes in producing paper made from 80 per cent wheat straw fibre with 20 per cent Forest Stewardship Council certified wood fibre.
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Cate Blanchett
Some people may just talk the talk, but Cate Blanchett is not afraid to walk the walk. The actress was part of a project that launched one of the largest rainwater harvesting systems in the world. She also helped in installing a solar power roof for Australia's Sydney Theatre Company.
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Gisele Bundchen
This supermodel is also a superwoman since she is always saving the world! In 2011, Gisele Bundchen was awarded by the International Green Awards as the Best International Green Celebrity. And since 2009, she has even been a Global Ambassador for the United Nations Environment Program!
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Gwyneth Paltrow
Shout outs to Gwyneth Paltrow’s parents for raising such an environmentally conscious daughter. The vegan is raising her kids to be just like her. The family has installed a water-filtration system and are using non-toxic shampoos. Every step counts.
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George Clooney
George Clooney was the first celebrity to switch in his BMW for a cleaner option, a Tango, an electric eco-friendly car. He was also part of the Oil Change campaign, to eliminate America's dependence on foreign oil.
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Natalie Portman
Natalie Portman makes sure she doesn't buy any fur, leather or feathers when buying outfits. But sometimes she has difficulty with finding cute shoes so she thought "Hey! Why not make my own?!" So that's what she did. The vegan actress created her very own vegan shoe line with proceeds going to the not-for-profit The Nature Conservancy.
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Matt Damon
Like Hayden, Matt Damon also received an award from the Environmental Media Association. He received the Ongoing Commitment Award thanks to his time with water.org. He co-founded the organization in 1990.
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Brad Pitt
When Hurricane Katrina hit, Brad Pitt participated in building homes for Katrina victims. But he didn't just built regular homes, he and Mike Holmes teamed up to Make It Right and create 150 green, energy-efficient homes.
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Ian Somerhalder
Actor Ian Somerhalder is another environmental activist on our list. He created his foundation to empower, educate and collaborate with people and projects to make a positive impact on our Earth.
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James Cameron
When it comes to being a vegan, these celebrities have nothing on James Cameron. The legendary Canadian filmmaker has adopted a plant-based diet and even grows his own vegetables! Not only that, but the compost they use is also animal byproduct free!
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Olivia Wilde
Olivia Wilde and her friend Barbara Burchfield teamed up to create Conscious Commerce. The company is a guide for conscious living by promoting causes, brands, and people that are forging a new paragon of living.
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Rachel McAdams
Canadian actress Rachel McAdams wants to share her green tips with the world. She is the co-founder of the website "Green Is Sexy", a site to create awareness for the environment and helping change the world one day at a time.
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