The technique is pretty straightforward and potentially very cheap, but will need to be scaled up significantly to make a difference.

LIMESTONE COUNTY, Ala. (WAFF) - Three people were arrested following a drug bust in Limestone County last week. The Limestone County Sheriff’s Office said a search warrant was carried out in the 700 ...

The water drips down over the mountainside, coating the rocks in calcium carbonate that has accumulated over millennia to form a white limestone crust. The travertines of Pamukkale have grown so ...