Disaster warning from UN as investigation reveals half of the planet's 500 biggest rivers are seriously depleted or polluted
The world's great rivers are drying up at an alarming rate, with devastating consequences for humanity, animals and the future of the planet. The Independent on Sunday can today reveal that more than half the world's 500 mightiest rivers have been seriously depleted. Some have been reduced to a trickle in what the United Nations will this week warn is a "disaster in the making".
From the Nile to China's Yellow River, some of the world's great water systems are now under such pressure that they often fail to deposit their water in the ocean or are interrupted in the course to the sea, with grave consequences for the planet. Adding to the disaster, all of the 20 longer rivers are being disrupted by big dams. One-fifth of all freshwater fish species either face extinction or are already extinct.
The Nile and Pakistan's Indus are greatly reduced by the time they reach the sea. Some, such as the Colorado and China's Yellow River, now rarely reach the ocean at all. Others, such as the Jordan and the Rio Grande on the US-Mexico border, are dry for much of their length. Even in Britain, a quarter of the country's 160 chalk rivers and steams - such as the Kennet in Wiltshire, the Darent in Kent, and the Wylye in Wiltshire - are running out of water because too much is being abstracted for homes, industry and agriculture.
This week an influential UN report will officially warn the world's governments of an "alarming deterioration" in the planet's rivers, lakes and other freshwater systems. Klaus Toepfer, the executive director of the United Nations Environment Programme, told the IoS yesterday that the state of the world's rivers is "a disaster in the making".
http://news.independent.co.uk/environment/article350785.ece