Hear Trent Reznor’s soundtrack to Leonardo DiCaprio’s climate change doc

Given that this is a) new Trent Reznor music, and b) for a movie about the possible total environmental collapse of the world, the music on Before The Flood is remarkably upbeat. Not chipper, exactly, but more cheerful than “Stranded polar bears on a melting ice floe.” You can listen to samples below, or stream the whole thing on Apple Music.

Before The Flood was directed by actor-director Fisher Stevens, who also produced the 2009 Oscar-winning enviro-doc The Cove. The film tracks DiCaprio—who recently faced criticism for his alleged links to a corruption scandal in Malaysia—as he journeys around the world, looking for solutions to climate change. (Presumably, his upcoming Captain Planet will feature a similar plot, albeit with more cartoon monkeys.) The film arrives in New York and L.A. theaters on October 21, before appearing on the National Geographic Channel on October 30.