There Could Be 11 Billion People on Earth in 2100. That Doesn't Have to Scare You.
Huffington Post - about 1 year
This is the first installment of a five-part WorldPost series on the world beyond 2050. The series is adapted from the Nierenberg Prize Lecture by Lord Martin Rees in La Jolla, Calif. Part two will be published next week. For nearly 50 years, the image of the Earth, as seen by Apollo astronauts circling the moon, has been iconic among environmentalists. Suppose there were some aliens out there and they'd been watching our planet for its entire 4.5 billion year history. What would they have seen? Over nearly all that immense time, Earth's appearance would have altered very gradually. The continents drifted; the ice cover waxed and waned; successive species emerged, evolved and became extinct. But, in just a tiny sliver of the Earth's history -- the last one-millionth part, a few thousand years -- the patterns of vegetation altered much faster than before. This signaled the start of agriculture. The pace of change accelerated as human populations rose. The world e
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