"SAN CARLOS APACHE RESERVATION — The sound always came first, a low buzz that grew and grew until it roared through the valley. Then the olive-colored plane appeared overhead, flying low. In its wake was a thick shower of oily droplets making a long, slow fall to the forested gullies below."

"Underground pockets of boiling water and steam in a northern New Mexico national preserve that represent the heart of an ancient collapsed volcano could get extra federal protection under a proposal by the National Park Service to limit or prevent any negative effects from tapping geothermal energy on neighboring land."

"Competing against millions of acres of cotton, winegrowers fear federal approval of new herbicides to be used on genetically modified cotton seeds will wipe out the wine industry in the Texas High Plains."

"Texas is among several states grappling with a surge of abandoned drilling sites and dwindling funds to clean them up."

"Oklahoma regulators released for the first time guidelines aimed to reduce the risk of major earthquakes being generated from fracking operations, including a mandate to immediately shut down operations in the event of a quake measuring 3.5 or higher on the Richter scale."