NASA Data Find Some Hope for Water in Aral Sea Basin
jpl.nasa.gov
jpl.nasa.gov
http://en.wikipedia.org/wiki/Aral_Sea
"Many of the canals were poorly built, allowing water to leak or evaporate. From the Qaraqum Canal, the largest in Central Asia, perhaps 30 to 75% of the water went to waste. Today, only 12% of Uzbekistan's irrigation canal length is waterproofed.
Of the 47,750 km of interfarm irrigation channels in the basin, only 28% have antifiltration linings. Only 77% of farm intakes have flow gauges, and of the 268,500 km of onfarm channels, only 21% have anti-filtration linings, which retain on average 15% more water than unlined channels."