On October 31st the United Nations announced the birth of the seven billionth person. Many stories were published on this event, but to me the most revealing was by David Suzuki, the venerable leader of Canada’s environmental movement. As Suzuki pointed out, the human population has increased three-fold during his lifetime. Nonetheless, he refused to blame population growth for our ecological malaise. As Suzuki argues, “most environmental devastation is not directly caused by individuals or households, but by corporations driven more by profits than human needs.” According to his line of thinking, it is overconsumption by the wealthy, not the ever-increasing population, that is causing the problem.
There was a time when population size was a central concern within the environmental movement. Stanford biologist Paul R. Ehrlich’s 1968 treatise, The Population Bomb, sat alongside Rachel Carson’s Silent Spring on environmentalists’ “must read” list. Full of doom and gloom, this book linked exponential growth of the human population with ecological destruction, resource exhaustion, mass starvation, and political instability. The only solution, according to Ehrlich, was to reduce the rate of population growth to zero percent. A variety of solutions were prescribed, including tax incentives to men that voluntarily underwent sterilization, luxury taxes on children’s goods, the promotion of abortion and other forms of birth control for women, and an end to foreign aid to countries that did not put a check on their population growth. The Population Bomb sold millions of copies, Ehrlich became a media darling, and the goal of reducing the global population became standard within the American environmental movement. Continue reading