In the world's driest places, "fossil water" is becoming as valuable as
fossil fuel, experts say. This ancient freshwater was created eons ago
and
trapped underground in huge reservoirs, or aquifers. And like oil, no
one
knows how much there is -- but experts do know that when it's gone, it's
gone.
"You can apply the economics of mining because you are depleting a
finite
resource," said Mike Edmunds, a hydro-geologist at Oxford University in
Great Britain.
In the meantime, though, paleo-water is the only option in many
water-strapped nations. For instance, Libya is habitable because of
aquifers -- some of them 75,000 years old -- discovered under the
Sahara's sands during 1950s oil explorations.
Read more:
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