"LEES FERRY, Ariz. — In this corner of America known for its vast landscapes, rugged mountains and deep river canyons, signs of the havoc created by the minuscule tamarisk beetle are everywhere."

"This week, scientists at the Scripps Institution of Oceanography in La Jolla, Calif., noticed an enormous school of anchovies gathering near the coast. Pressed into a huge swarm, an estimated one billion of the tiny fish are taking cues from their neighbors, carefully coordinating their every move."

"A federal appeals court today sided with U.S. EPA in a broad challenge from two states and the mining industry to controversial Obama administration policies aimed at addressing the environmental effects on waterways of mountaintop-removal coal mining."

"MANDAREE, N.D. — Growing up, Ruth Anna Buffalo would follow the dirt track behind her house into the rugged North Dakota badlands, swimming in creeks picketed with beaver dams, finding artifacts and climbing bluffs overlooking Lake Sakakawea. For the young, the lake and the land around it were a wonderland."

"DALLAS -- Texas has stopped inspecting 44% of the dams in the state, following passage last year of a state law that exempted most privately owned dams from safety requirements. Now, as a drought dries up large portions of the Southwest, some dam-safety experts and officials are questioning the law, saying the dry spell is leaving webs of cracks along the surface of earthen dams that may make them weaker—and prone to triggering floods—when rains eventually fill them up again."

"Around 1 million gallons of saltwater has leaked from a North Dakota pipeline, some of it into a bay that leads to a lake that provides drinking water for an American Indian reservation, company and tribe officials said Wednesday."

"Oil that matches the 2010 Deepwater Horizon spill in the Gulf of Mexico has been found in the bodies of sickened fish, according to a team of Florida scientists who studied the oil's chemical composition."