"New York State's attorney general and 12 other top state law enforcement officials said on Friday they would mount a vigorous court challenge to any effort to roll back vehicle emission rules by the Trump administration."

"The Environmental Protection Agency (EPA) will delay implementation of an Obama-era chemical safety rule for nearly two years while it reassesses the necessity of the regulation."

"Interior Secretary Ryan Zinke has recommended President Trump 'revise the existing boundaries' of the Bears Ears National Historic Monument and call on Congress to dictate the terms of how parts of the area should be managed."

"Congress passed a major piece of financial legislation yesterday that climate advocates say threatens their ability to pressure corporations to address environmental risks."

"President Trump’s White House is reviewing the Environmental Protection Agency’s (EPA) proposed reconsideration of former President Barack Obama’s climate change rule for power plants."

"President Trump concluded his 'infrastructure week' today by promising to 'hold the bureaucracy accountable.'"

"A federal judge has denied the Trump administration's appeal in a climate change lawsuit, paving the way for the unprecedented suit to go to trial."

"Up to seven years of emails that former ExxonMobil CEO Rex Tillerson wrote under the alias 'Wayne Tracker' may have been erased, a company witness has told investigators for the New York attorney general."

"Some of Nevada's largest solar installation companies plan to resume doing business in the state. For the past year-and-a-half Tesla (formerly SolarCity) and Sunrun stopped seeking new customers in this sunny part of the country because the state's Public Utilities Commission chose to phase out incentives for homeowners who install rooftop solar panels. Now, Republican Gov. Brian Sandoval plans to sign into law a bill that brings back 'net metering.'"

"After the 2010 Gulf oil spill, the Obama administration broke the scandal-plagued federal agency that policed offshore drilling into separate bureaus. Now the Trump administration is considering putting it back together again."