7 Billion 1.0 [iPad] – 世界人口70億人に到達、増え続ける人口問題を特集した「National Geographic」誌のアプリケーション
National Geographic magazine presents 7 Billion: How your world will change - to coincide with the arrival of the 7 billionth human being to our world. This app explores the challenges of a growing human population in a world of limited res...