"Environmental group the Sierra Club sued the U.S. Energy Department on Monday in hopes of forcing it to reveal the groups it has consulted in conducting an eagerly awaited study on the electricity grid."

"Several green groups launched a legal campaign last week against the Trump administration over a pair of rules issued by U.S. EPA under the nation's new chemicals law."

"California Attorney General Xavier Becerra sued the U.S. Environmental Protection Agency to compel it to say what steps were taken to ensure its rule making and procedures remain impartial even as it’s led by a man who opposed the EPA in at least a half dozen lawsuits while serving as Oklahoma’s attorney general."

"Pruitt used to sue the EPA. Now he’s being sued for what he’s doing with it."

"Exxon Mobil Is Still Pumping Toxins into Black Community in Texas 17 Years After Civil Rights Complaint"

"The U.S. and Mexican governments may be sharply at odds on President Donald Trump's plan for a border wall, but when it comes to water – and the potential for a major shortage along the Colorado River – the two sides seem to be on the same page."

"The Trump administration is expanding its review of greenhouse gas emissions standards for cars."

"The Trump administration has collected 60 percent less from civil penalties for environmental wrongdoing than the administrations of presidents Barack Obama, George W. Bush and Bill Clinton did on average in their first six months in office."

"Ten states from Nevada to Texas have weighed in to support two water agencies in their fight with an Indian tribe over control of groundwater in the California desert."

"ANCHORAGE, Alaska — In the energy industry, Hilcorp has built a reputation for fast growth, big profits and making people rich. ... In regulatory circles, however, and among environmentalists, Hilcorp has become known for different reasons."