Memo to Hollywood environmentalists

I am not surprised to hear that the movie and TV industry are big polluters. According to what I heard on Marketplace, the only industry that belched more emissions and consumed more resources was petroleum refining. This does not surprise me because usually time is so important that you can throw money at everything else. I wonder if people in Hollywood can change the industry? I always wonder if people in Hollywood can change the world where they make all their money.