"WASHINGTON -- The Environmental Protection Agency has quietly signaled it may allow states to release more ozone air pollution, commonly known as smog, dirtying the air in those states and neighboring ones, but the agency did not review the health impact of such a move.

The Trump administration's position is outlined in a highly technical guidance memo about plans states must create and submit for EPA approval under the Clean Air Act's good neighbor requirements. It was sent in August to EPA regional offices and posted on the agency's website, but not announced to the public.

"The White House is growing increasingly concerned about allegations of misconduct against Interior Secretary Ryan Zinke, according to two senior administration officials, and President Trump has asked aides for more information about a Montana land deal under scrutiny by the Justice Department."

"A coalition of organizations is formally threatening to sue the Environmental Protection Agency (EPA) for not banning a toxic chemical used in paint strippers."

"What factory farm owners portray as “normal odors” from animal waste can cause serious harm to farmers and the residents who live near these large industrial operations."

"The Interior Department’s internal watchdog referred its investigation of Secretary Ryan Zinke to the Department of Justice (DOJ) more than two weeks ago, just days before it was announced that Interior would be getting a Trump political appointee to replace its acting inspector general, two sources confirmed to The Hill."

"Two Wyoming laws that prohibit trespassing to collect environmental data violate the U.S. Constitution’s free-speech protections, a judge ruled in siding with two environmental groups and a news photographer association."

"North Carolina would cut its greenhouse gas emissions by 40 percent by 2025 under an ambitious statewide goal set by Gov. Roy Cooper on Monday."

"After years of hearings and litigation, the Supreme Court of Hawaii on Tuesday approved a building permit for a giant telescope on the ancient, contested site of the volcano Mauna Kea."

"A Democratic-controlled House would bring the hammer down on the Trump administration's Interior Department. ... Oversight hearings would accelerate from slow pitch to hardball."

"The Interior Department’s Office of Inspector General has referred one of its probes into the conduct of Secretary Ryan Zinke to the Justice Department for further investigation, according to two individuals familiar with the matter."