The largest assessment of global groundwater wells finds many are at risk of drying up

'Jack and Jill went up the hill to fetch a pail of water.' It's a silly rhyme, but one that highlights a simple fact: Humans have long relied on wells -- such as the one visited by Jack and Jill -- for their primary drinking water supply.

from Latest Science News -- ScienceDaily https://ift.tt/2QtmFcj