Desalination

Listen up folks, you've read it here before (myself and commenters both), and I'll say it again. Fresh water is one of the scarcest resources on the planet. Here is an article on desalination techniques in Scientific American. It's a good read.

Almost three quarters of Earth's surface is covered with water, but most of it is too salty to drink. And the 2.5 percent that is freshwater is locked up either in soil, remote snowpacks and glaciers or in deep aquifers. That leaves less than 1 percent of all freshwater for humans and animals to drink and for farmers to use to raise crops—and that remnant is shrinking as rising global temperatures trigger more droughts. The upshot: it's becoming increasingly difficult to slake the world's thirst as the population grows and water supplies dwindle. Analysts at the investment bank Goldman Sachs estimate that worldwide water use doubles every 20 years.

If you talk to someone in the know ...

... when it comes to environmental issues, and you ask them what the next "Big Deal" is, they'll tell you "Water". Water is a hot commodity, and we totally take it for granted. I mean, admit it ... you literally flush drinking-grade water down the toilet every day without even drinking it. I've blogged about it before. However, despite our cavalier attitude about water, it really is a finite resource. One only need look at Atlanta of last year to realize that, and farmers in California this year are going to be squeezed very tightly thanks to new regulations.

So? We need more water, and we need is yesterday. And scientists may have stumbled upon something which may help us achieve that goal. Desalination done cheaply, also an item I mentioned in that blog entry I linked to earlier in this entry.