"Environmental activist Erin Brockovich is helping Oklahoma's Pawnee Nation take on several fracking companies in a lawsuit alleging that damages to its tribal buildings and reservation property was the result of man-made, or induced, earthquakes."

"A federal court today vacated part of an Obama-era U.S. EPA rule for halting 'sham-recycling' of hazardous materials."

"U.S. EPA and the Army Corps of Engineers are disputing their own economic analysis of the 2015 Clean Water Rule, now saying most benefits they previously ascribed to the Obama-era regulation can no longer be quantified."

"The Trump administration's strategy of delaying compliance deadlines for Obama-era environmental rules is facing tests in federal courts."

"Six state prosecutors are seeking to join a lawsuit to force the U.S. Environmental Protection Agency to ban the pesticide chlorpyrifos from use on U.S.-grown fruits and vegetables, according to court papers filed on Thursday."

"Donald Trump’s decision to withdraw the US from the Paris climate deal may have followed months of anguished division amongst his closest advisers, but his administration has proceeded with quiet efficiency in its dismantling of other major environmental policies."

"The Environmental Protection Agency (EPA) is proposing lower biofuel quotas in 2018 than those currently on the books and required by federal law."

"U.S. EPA Administrator Scott Pruitt has directed his agency to limit the 'sue and settle' practice that critics say the Obama administration used to issue new regulations."

"Dealing a legal blow to the Trump administration, a federal appeals court ruled on Monday that the Environmental Protection Agency cannot suspend an Obama-era rule to restrict methane emissions from new oil and gas wells."

"Fishing and environmental groups sued the Trump administration [June 29] for concluding that Gov. Jerry Brown's (D) plan to replumb California's water system would not jeopardize key threatened species.

Brown wants to build two 40-foot-diameter tunnels buried 150 feet below ground to shuttle water around the ecologically sensitive Sacramento-San Joaquin River Delta, where the state's two main rivers meet before flowing to the ocean through San Francisco Bay.