Some of the developing world's largest rivers are drying up because of climate change, threatening water supplies in some of the most populous places on Earth, say scientists.Before they melt, maybe it's time to start hauling icebergs down from the arctic to build reservoirs for these soon-to-be parched areas.
Researchers from the US-based National Center for Atmospheric Research (NCAR) analysed data combined with computer models to assess flow in 925 rivers — nearly three quarters of the world's running water supply — between 1948 and 2004.
A third of these had registered a change in flow and most of them — including the Niger in West Africa, the Ganges in South Asia and the Yellow River in China — were dryer.
Monday, May 04, 2009
Where did my river go?
This could be a problem in the coming years. Global climate change is impacting the flow of rivers in some very populous areas.