Rivers Threatened Around The World

From New Scientist:

The water supplying 80 per cent of the world's population is exposed to "high levels of threat". That's the conclusion of a study that surveys the status of rivers throughout the world, and looks at their effects on both humans and the ecosystem at large.

Writing in this week's Nature (vol 467, p 555), Charles Vorosmarty of the City College of New York and colleagues pull together a swathe of data on factors affecting water security, from dams that reduce river flow to the pollution and destruction of wetlands.

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