Scientists call for a more considered approach to a 7 billion global population

  • Identify subpopulations that contribute most to environmental degradation and those that are most vulnerable to its consequences. In poor countries especially, these subpopulations are readily identifiable according to age, gender, level of education, place of residence, and standard of living.
  • Facilitate the inevitable trend of increasing urbanization in ways that ensure that environmental hazards and vulnerabilities are under control.

http://www.sciencedaily.com/releases/2011/10/111028121228.htm