"DiCaprio is both a famous actor and perhaps the world’s best-known climate activist. He doesn’t speak on the subject of carbon emissions so much as he preaches. “Humans have put our entire existence into jeopardy,” DiCaprio thunders. Climate change is “the most urgent threat facing our entire species.” Those who question climate policy, he declares, should be banned from public office. “The scientific consensus is in, and the argument is now over.” Few preachers live up to the standards they set from the pulpit, and DiCaprio is no exception. In the summer of 2016, DiCaprio was scheduled to receive an award from the environmental group Riverkeeper. He was in Cannes attending the film festival at the time, so he chartered a private jet to fly from France to New York and back. That’s an eight-thousand-mile round-trip, which in addition to being physically exhausting, amounts to a gargantuan carbon footprint, bigger than the average African might emit in a lifetime. For DiCaprio, it was just another Cannes Film Festival. The year before, he was photographed off the coast of France meandering alone on the deck of a 450-foot, $200 million yacht, which he’d rented as an accommodation for the week. Once again, a lot of carbon."