Dawn of a Thirsty Century
The amount of water in the world is limited. The human race, and the other species which share the planet, cannot expect an infinite supply.
Water covers about two-thirds of the Earth’s surface, admittedly. But most is too salty for use.
Only 2.5% of the world’s water is not salty, and two-thirds of that is locked up in the icecaps and glaciers.
For full article, visit:
http://news.bbc.co.uk/2/hi/science/nature/755497.stm
