Ebook: 7 billion how your world will change

Sometime in late October 2011, the 7 millionth citizen of planet Earth will be born. To mark the event, National Geographic magazine commissioned seven articles that explore the fascinating issues--including demographics, food security, climate change, fertility trends, managing biodiversity--surrounding this topic, which are collected for the first time in this special ebook.;Population 7 billion -- Enter the Anthropocene Age of man -- The acid sea -- Bangladesh: the coming storm -- Food ark -- Girl power: machisma -- Rift in paradise: Africa's Albertine Rift Valley.