(May 8, 2017, 10:07 AM EDT) -- ATLANTA — The Natural Resources Defense Council (NRDC) on May 1 voluntarily dismissed its lawsuit against the U.S. National Park Service (NPS) pertaining to oil and gas exploration activities for the purpose of hydraulic fracturing operations in the Big Cypress National Preserve (National Resources Defense Council, et al. v. National Park Service, et al., No. 17-11798-GG, 11th Cir.)....