"A new study looking at key aquifers beneath the Great Plains and California's Central Valley suggests that areas of Texas and Kansas are drawing groundwater at an unsustainable rate."

"A number of major United States corporations publicly support climate change science but contribute heavily to politicians and research groups that deny or play down the threat of global warming, according to a new study from the Union of Concerned Scientists."

"The study found that ExxonMobil, General Electric, Caterpillar and Boeing are among companies that play both sides of the fence, supporting groups that promote climate change science as well as those that seek to undercut it."

"Illinois Attorney General Lisa Madigan sued current and past owners of Phillips 66's Wood River, Illinois, refinery on Tuesday, alleging the ground water in the nearby town of Roxana, Illinois, was contaminated by the plant."

"Hundreds of Baltimore-area families have volunteered for a government study to spray their suburban yards with pesticide, which researchers hope can protect them from Lyme disease but that environmentalists warn is unsafe."

"They gathered in airboats off the northeastern corner of the Great Salt Lake shoreline. Above, clouds jostled in the vast Utah sky."

"The population of endangered California condors (Gymnogyps californianus) hit an important milestone last month, reaching a high of 405 birds--quite an achievement for a species that was down to its last 22 individuals just 25 years ago."