Scientists find major change in freshwater caused by agriculture and climate

Water, water everywhere—but not necessarily in the places it used to be. Even just in the past two decades, freshwater has been on the move in what scientists are now realizing represents "major hydrologic change." That's according to a new study published in the journal Nature. The study looks at freshwater between 2002 and 2016 and suggests that water distribution is becoming more extreme—places that used to have more water have even more water, and places that used to have less water have even less water.That's due in part to human activities like agriculture, but also to the consequences of climate change.The study was based on data produced by the Gravity Recovery and Climate Experiment, or GRACE, a pair of NASA satellites that orbited Earth and detected small changes in gravity caused by higher or lower amounts of water.