I saw Leonardo DiCaprio speak at a climate change event on the Elipse in Washington DC at least 20 years ago, and who is more mainstream than that guy? He is always at conferences about the environment with other hypocritical bigwigs, and makes documentaries about the issues. When he isn't making award winning movies or saving the Earth, Leonardo flies around the world on private jets or sails on superyachts to his mansions and private island off the coast of Belieze, presumably with his under 25 year old girlfriends. Look out Greta!

After 8 years of warning the American public about sea level rise due to AGW, the Obamas own two sea side mansions. The whole "Do as I say, not as I do." behavior from many well known people who claim to be environmentalists is not helping the cause any. If the environmental movement was smart they would tell rich, famous people who can't stay off of a luxury business jet to STFU about the whole thing.