"An 18-year-old killer whale has died at the SeaWorld park in San Antonio, the park said on Tuesday, raising concern among animal groups that have criticized the company for years over its treatment of captive marine mammals."

"Some of the world’s biggest temperature jumps are happening in lakes — suggesting that problems such as algae blooms and low-oxygen zones hazardous to fish will get worse, a new report says."

"A series of powerful snowstorms in the Sierra Nevada has resulted in a small milestone in drought-stricken California: The snowpack is now higher than average for this time of year."

"SandRidge Energy Inc., the financially troubled oil producer focused on earthquake-prone northern Oklahoma, is defying a state directive to shut down six disposal wells linked to quakes."

"Plastic microbeads used in soaps, body washes and other personal-care products will be phased out starting in 2017 under legislation approved by Congress and sent to the president."

"In places around the world, supplies of groundwater are rapidly vanishing. As aquifers decline and wells begin to go dry, people are being forced to confront a growing crisis."

"Kemal Ali ran a successful well-digging business for farmers in northern Syria for 30 years. He had everything he needed for the job ... Then things changed. In the winter of 2006–2007, the water table began sinking like never before."

"A leaked draft report compiled by [North Carolina] state environmental officials shows that the coal ash waste in a huge basin at the Duke Energy power plant in Belews Creek, and in basins at almost all other Duke power plant sites statewide, will have to be excavated and put in lined landfills by 2019."

"Just east of the Homestead-Miami Speedway, off Florida's Biscayne Bay, two nuclear reactors churn out enough electricity to power nearly a million homes. The Turkey Point plant is licensed to continue doing so until at least 2032. At some point after that, if you believe the direst government projections, a good part of the low-lying site could be underwater. So could at least 13 other U.S. nuclear plants, as the world’s seas continue to rise."