On days celebrating the environment like Earth Day, celebrities and politicians like to lecture average Americans about how they need to change their behavior to fight climate change. However, they often fail to practice what they preach. 

Over the years, liberal politicians and celebrities have been accused of hypocrisy for failing to live by the eco-friendly lifestyles they advocate. Here are several examples of Hollywood A-listers, tech billionaires, and Democrat politicians who have been caught being hypocrites when it comes to helping the environment. 

"Avengers" actor Mark Ruffalo is a passionate crusader against climate change. He has participated in events like the People’s Climate March in 2015 and advocated against fracking. Ruffalo has used his career to advocate for environmental causes like when he starred in and co-produced "Dark Waters," a film about a corporate lawyer fighting to expose poisonous pollution by a corporation.

During the 2014 People's Climate March, the Hulk actor was asked if celebrities like Leonardo DiCaprio were the best spokespeople to fight climate change when they themselves have significant carbon footprints. 

"Oh brother," Ruffalo responded. "That is a question you shouldn’t be asking here today because that defies the spirit of what this is about."