How Many Can Live On Planet Earth? Pt 2
Dec 11
Part two of this six part series delves into how much it takes to support us on this planet, particularly water. Thomas Malthus was the first to warn us of our ability to reproduce faster than the planet’s ability to support us, and of course we have struggled mightily with the help of technology to feed and provide fresh water to exploding populations.
Seventy percent of the planet is water, but only about three percent of it is fresh water, and only about one percent is available to us. One billion people today lack access to fresh water, and it is estimated that half of the world’s population will be water stressed. With a population of 20 million, Mexico City represents all of the problems associated with too many people and too little fresh water. It is very likely that future wars will be fought over water rather than oil.
http://www.youtube.com/watch?v=B498dbsireA
