We’ve reported before on actor Leonardo DiCaprio’s work to raise awareness of climate change. From his role as a United Nations representative to his rousing environmentalist speech at this year’s Oscars, DiCaprio has done everything he can to spread the word. Now, he’s going one step farther and making his new documentary, Before the Flood, available for free on YouTube. If you’re interested in watching it on the small screen, you’ll have to act fast – it’s only going to be online through November 6th. After that, you’ll need to catch it in theaters or on National Geographic.

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The film follows DiCaprio as he travels the globe, exploring the impact of man-made global warming. While it’s true all this travel adds up to a hefty carbon footprint, the actor does his best to offset it with a voluntary carbon tax payment. (If only more of us could afford to offset our plane travel!)

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Along the way, he interviews a variety of figures, including President Barack Obama, Pope Francis, John Kerry, and Elon Musk. The film is a collaboration between DiCaprio and Fisher Stevens, the documentarian behind The Cove, 2010’s award-winning film about dolphin hunting in Japan.

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Related: Leonardo DiCaprio delivers passionate speech to the UN on climate change

At the European premiere of Before The Flood, DiCaprio explained his purpose in making the film: “We wanted to create a film that gave people a sense of urgency, that made them understand what particular things are going to solve this problem. We bring up the issue of a carbon tax, for example, which I haven’t seen in a lot of documentaries. Basically, sway a capitalist economy to try to invest in renewables, to bring less money and subsidies out of oil companies. These are the things that are really going to make a massive difference.”

+ Before the Flood

Via SlashFilm