A pair of gravity-measuring NASA satellites has documented a precipitous drop in freshwater supplies in the arid Middle East over the past decade. NASA said that since 2003 parts of Turkey, Syria, Iraq, and Iran had lost 144 cubic kilometers of total stored freshwater, an amount roughly equivalent to the water in the Dead Sea. (more…)

Four water districts in the western U.S. are working with Mexican officials to develop two huge desalination plants in Playas de Rosarito, a coastal city located in the Mexican state of Baja California, as communities on both sides of the border look to wean themselves from the drought-prone Colorado (more…)

More than $88 billion will be invested in desalination technologies worldwide from 2010 to 2016 as regions face dwindling supplies of freshwater and steep population growth, according to a new report. Declining costs associated with several key desalination technologies — including reverse osmosis — will make saltwater- (more…)

Water agencies facing droughts and shortages of freshwater, such as in coastal California, have been turning increasingly to desalination this year.

However, current desalination methods can be expensive and energy inefficient. Watchdog groups prefer water conservation and efficiency efforts, and charge that tapping the oceans for potable water can pollute waterways and kill marine creatures.

Yet could desalination become more viable and efficient? The Global Cleantech 100 list anointed several companies with that aspiration as technology innovators earlier this month. (more…)