http://www.gizmag.com/freshwater-reserves-under-sea/30072/
http://www.sci-news.com/geology/science-fresh-groundwater-reserves-ocean-01606.html
http://www.sciencedaily.com/releases/2013/12/131208085304.htm
http://www.nature.com/nature/journal/v504/n7478/full/nature12858.html
At least when...