Join Leonardo DiCaprio as he explores the topic of climate change, and discovers what must be done today to prevent catastrophic disruption of life on our planet. ➡ Subscribe: http://bit.ly/NatGeoSubscribe ➡ Get the soundtrack on iTunes: http://apple.co/2e6e9dq ➡ Discover your climate impact: http://carbotax.org/ ➡ Learn more & take action: http://on.natgeo.com/2eWxnkW Watch an exclusive sneak pee