"In southwest Florida, county officials are fighting the state over a new oil drilling process that's known by many different names: acidification, acidizing, acid stimulation and acid fracking.

Collier County has charged that state regulators have been lax in their oversight of the drilling, jeopardizing public health and the environment.

Acid has long been used in oil drilling operations in Florida to dissolve and loosen the limestone bedrock. But a drilling operation near Naples, on the western edge of the Everglades, was something new. In December, Texas-based Dan A. Hughes Co. injected acid under pressure there — a process not used before in Florida."

Greg Allen reports for NPR's All Things Considered July 2, 2014. [2]