Robert Engelman, An End to Population Growth: Why Family Planning Is Key to a Sustainable Future, The Solutions Journal, Volume 2, Issue 3, May 2011, Pages 32-41 ( Abstract: Those who ponder humanity’s future in the twenty-first century generally take at face value demographic projections suggesting that the world population will reach something like 9 billion around 2050 and will then stabilize at about that level.1 The widespread belief that this 30 percent increase from today’s 6.9 billion people is inevitable undermines consideration of the role of population size in climate change, water scarcity, biodiversity loss, rising energy prices, and food security. Contributing to this is the related view that efforts to prevent population growth would require coercive government policies that constrain couples from having the children and the family sizes they want. While some analysts are confident that the world can feed, house, and otherwise support 9 billion or more people, others are less certain, and voices of caution about population growth are heard more often than in the past.2 A logical application of the precautionary principle in the face … Topics: Population; Sustainability