Real Deal: Ohio State University hydro-geologist Audrey Sawyer said only a minor amount of seawater will make drinkable water undrinkable.
The journal Science published a new study showing 9 percent of U.S. coastal areas are susceptible to a contaminated underground mix of fresh water and salt water, including southeastern Florida.
The study features the first map of underground water flows ever developed. The technical name for these flows is "submarine groundwater discharge." These flows bring fresh...