If the children already born each have only two children themselves ... in twenty-seven to thirty-five years the population of the world will double. — Robert Bork Copy Share Image
In the last 200 years the population of our planet has grown exponentially, at a rate of 1.9% per year. If it continued at this rate, with the population doubling every 40 years, by 2600 we would all be standing literally shoulder to shoulder. — Stephen Hawking Copy Share Image