Damon starred in the climate change and refugee-themed movie Downsizing. He also starred in the anti-fracking movie Promised Land.
Hollywood celebrities including Harrison Ford, Leonardo DiCaprio, John Legend, and Chrissy Teigen have been criticized for promoting climate change activism while taking private jets to fly around the world. In one instance, DiCaprio flew roundtrip from France to New York in a private jet to accept an environmental award in 2016.
Private jets emit as much as 20 times more carbon dioxide per passenger mile than a commercial airliner, according to studies.