Guardian: On 17 January, scientists downloaded fresh data from a pair of Nasa satellites and distributed the findings among the small group of researchers who track the world's water reserves. At the University of California, Irvine, hydrologist James Famiglietti looked over the data from the gravity-sensing Grace satellites with a rising sense of dread.
The data, released last week, showed California on the verge of an epic drought, with its backup systems of groundwater reserves so run down that the losses...