Yet Population Bomb author Paul Ehrlich keeps the faith, says the Times. Faced with a world of 6.3 billion people (far lower than he expected) who are living in generally improving circumstances,
Dr. Ehrlich still argues that the earth's "optimal population size" is two billion. That's different from the maximum supportable size, which depends on the consumption of resources.
"I have severe doubts that we can support even two billion if they all live like citizens of the U.S.," he said. "The world can support a lot more vegetarian saints than Hummer-driving idiots."
Whole thing here.
Link via Arts & Letters Daily.