Not sure who Paul Ehrlich is or was, and there's no citation given for the statistic that humans occupy only 1 or 2% of the earth's surface, but assuming the figures aren't from as biased a source as the CIA, do we know how much of the earth's land surface CAN be occupied by humans? If the area that CAN'T be occupied by humans, because it's too hot/too cold/too dry etc., is say, for sake of arguement, 80% then the 1 or 2% figure takes on a whole new meaning. [[User:BetsyNewson|BetsyNewson]] 10:37, 8 January 2009 (EST) | Not sure who Paul Ehrlich is or was, and there's no citation given for the statistic that humans occupy only 1 or 2% of the earth's surface, but assuming the figures aren't from as biased a source as the CIA, do we know how much of the earth's land surface CAN be occupied by humans? If the area that CAN'T be occupied by humans, because it's too hot/too cold/too dry etc., is say, for sake of arguement, 80% then the 1 or 2% figure takes on a whole new meaning. [[User:BetsyNewson|BetsyNewson]] 10:37, 8 January 2009 (EST) |