The Royal Society - Science Policy Centre report 01/12 - April 2012 DES2470
Available online PDF [134p.] at: http://bit.ly/IdIq53
“………The 21st century is a critical period for people and the planet. The global population reached 7 billion during 2011 and the United Nations projections indicate that it will reach between 8 and 11 billion by 2050.
Human impact on the Earth raises serious concerns, and in the richest parts of the world per capita material consumption is far above the level that can be sustained for everyone in a population of 7 billion or more. This is in stark contrast to the world’s 1.3 billion poorest people, who need to consume more in order to be raised out of extreme poverty.