Affleck appeared alongside then-Senator Barack Obama at a 2006 rally in support of Proposition 87, which sought to reduce petroleum consumption in favor of alternative energy. He appeared in a global warming awareness video produced by the Center for American Progress Action Fund in 2007. Also that year, Affleck admitted he was not "particularly good at being green" while, in 2014, he named "a 1966 Chevelle" as his guilty pleasure. In 2016, Affleck filmed an endorsement for Rezpect Our Water, an online petition to stop construction of the Dakota Access Pipeline.