World population to reach 9 billion in 2045 - can the planet take the strain? NatGeo video

National Geographic video: With the worldwide population expected to exceed seven billion in 2011, National Geographic magazine offers a 7-part series examining specific challenges and solutions to the issues we face. The magazine introduces the series with its January cover story "7 Billion," offering a broad overview of demographic trends that got us to today and will impact us all tomorrow. The first in-depth story will appear in the March issue, focusing on humans' impact on the planet's geology. Other stories will follow throughout 2011.

References:
7 Billion. By 2045 global population is projected to reach nine billion. Can the planet take the strain? National Geographic, 2011.