Pa. allows dumping of tainted waters from gas boom
Monday, January 3, 2011 - 13:02
in Earth & Climate
The natural gas boom gripping parts of the U.S. has a nasty byproduct: wastewater so salty, and so polluted with metals like barium and strontium, that most states require drillers to get rid of the stuff by injecting it down shafts thousands of feet deep....