Thanks to Alan Kuper for this article.
Scientists debate how much population the world can sustain
Tuesday, February 13, 2007
Mike Lafferty THE COLUMBUS DISPATCH
The streets of Dhaka, Bangladesh, teemed with people in 1994. Thirteen years later, Bangladesh has a population of nearly 150 million people.
In the days of sailing ships, sailors used to leave goats on islands as they passed to ensure fresh meat on return trips. It worked too well. The animals bred faster than the sailors could eat them, and from the Channel Islands off California to the Seychelles in Indian Ocean, goats ate all the vegetation and began to starve. The goats also screwed up the environment so that native species couldn’t survive, either,” said John Wenzel, director the Ohio State University Museum of Biological Diversity. For example, the goats stripped away plants’ low-growing leaves so that tortoises couldn’t find enough to eat.
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