Numerous prominent figures have taken part and have encouraged others to do the same, but scroll down to see who have been leading the charge consistently.
1. Leonardo Dicaprio
Back in 1998, the Oscar winner established his eponymous foundation to promote awareness and since then, he has been active with regards to the fight against climate change. A producer of multiple documentaries about environmental issues and a regular at the annual People’s Climate March, DiCaprio has also sat on the board of the Global Green USA, International Fund for Animal Welfare and World Wildlife Fund over the years.
2. Robert Redford
In 2015, the Oscar winner and founder of the Sundance Film Festival told TIME that the environmental movement came on strong when young people were looking for change in the late ‘60s and early ‘70s. Redford is also a longtime trustee with the Natural Resources Defense Council, a nonprofit founded in 1970 that brags a workforce of estimated 700 scientists, lawyers and policy advocates working together for a common cause – finding clean energy solutions, preserving earth’s natural resources and stopping those who intend to plunder these resources.
3. James Cromwell
The actor who took on the role of the left-wing brother of a Murdochian media kingpin in Succession is a full-on eco-warrior and activist for certain causes such as animal rights, pay equity and prison reform – after having seen the inside of a cell for several times, including a three-day stretch when he refused to pay a fine following an anti-fracking protest arrest.
4. Daryl Hannah
While protesting environmental justice, the Splash star has been arrested more times than she can count. In 2015, Hannah told The Guardian that she ends up taking with the sheriffs at the station, generally, so she does get singled out but not necessarily in good ways. She added that she’s always in solitary when she was put in jail, and she recalls it as being kind of scary and boring. Hannah is a vegan (and a vegetarian since she was 11 at least) and Prius-shmeeus – she has got to be one of the first big celebrities you heard of tricking her car out to run on recycled biodiesel.
5. Joaquin Phoenix
The Joker star and lifelong vegan is one committed animal rights activist, whether you enjoyed his advocacy from the Oscars stage or not. To live out their days, Phoenix personally arranged for a cow which had just given birth and her calf to be separated from a slaughterhouse and transported to Farm Sanctuary in California soon after his eye-opening speech about the treatment of cows. Regarding his brother’s controversial speech, Heart Phoenix, the actor’s sister told Gainseville.com that his own humanity is definitely more important, and that he was very courageous to stand in front of those people. She added that everytime he’s won an award, he’s focused on something – #MeToo, climate change, gender equality, and animals.