YouTube - 7 Billion, National Geographic MagazineLearn more about population: http://ngm.nationalgeographic.com/7-billion ➡ Subscribe: http://bit.ly/NatGeoSubscribe #NationalGeographic #Population #Infographics About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the
