Leonardo DiCaprio begins his new climate change documentary Before the Flood with his first memory: staring at a poster of Hieronymus Bosch’s “The Garden of Earthly Delights” hung above his crib. The painting’s surreal, nightmarish depiction of hell, DiCaprio implies, is the Earth’s future if we continue to ignore science’s near constant warnings about impending, and potentially cataclysmic, climate change. National Geographic released Before the Flood online simultaneously with its on-air debut; you can watch the entire doc (seemingly commercial free) on their YouTube channel right now. In it, The Revenant actor travels the globe to interview leaders, including President Obama, and climate change experts about humanity’s impact on the environment. Unless concrete measures are put in place immediately, the doc suggests, it’s only a matter of time before we’ll all be cast out of Eden.