Why we have enough water  Why we have enough water  The Ganges
River Delta, in Pakistan, could be feeding a lot more people.
Photo: <a href=”http://www.flickr.com/photos/lunarandplanetaryin
stitute/5039101579/”> Lunar Planetary Institute (Flickr)</a> The
Ganges River Delta, in Pakistan, could be feeding a lot more
people. Photo: Lunar Planetary Institute (Flickr)  This article
was republished by The Christian Science Monitor.  The next
century is going to leave the planet parched for drinking water.
But a new study asserts that the problem isn't water scarcity --
it's water efficiency.  The global population is expected to
reach 9 billion by 2050, and the UN Food and Agriculture
Organization says we need to increase food and water production
by 70% if we are to feed that population. Can we do that with
the resources we have?  Yes, says the study, published by the
Consultative Group on International Agricultural Research
(CGIAR). Researchers looked at 10 major river basins to assess
how the world uses its water