"The Trump administration has withdrawn a slate of proposed carbon dioxide safety regulations inspired by a pipeline failure that sent nearly 50 people to the hospital with “zombie”-like symptoms, and the new regulator overseeing these matters previously worked as a lobbyist for the pipeline industry."

"The administration is setting the stage for Congress to repeal a longstanding waiver that allows California to set its own pollution standards. State officials say the effort is illegal."

"The president’s deregulatory blitz might crash into the same repetitive setback from his first term: court defeats stemming from procedural fumbles."

"The California Department of Public Health has unveiled an online dashboard that tracks cases of the lung disease silicosis among fabricators of artificial-stone countertops in the state."

"In a setback for the Trump administration, the Supreme Court has rejected requests to freeze proceedings in a set of pending cases, including one involving California’s long-standing authority to set strict tailpipe emissions for vehicles."

"President Trump’s pick to lead the Commerce Department assured senators on Wednesday he won’t try to dismantle the nation’s climate, oceans and weather science agency during a largely genial confirmation hearing."

"Hours after being sworn in as the new U.S. Secretary of Transportation, Sean Duffy took aim at the main way the federal government regulates miles per gallon for cars and pickup trucks — also a principal way that it regulates air pollution and addresses climate change. Duffy ordered the federal agency in charge of fuel economy standards to reverse them as soon as possible. The standards have been in place since the 1970s energy crisis and were intended to conserve fuel and save consumers money at the gas pump."

"Acting EPA Administrator James Payne has ousted all members of two of the agency’s most influential science advisory panels, giving President Donald Trump’s administration the opportunity to reshape them with its own appointees."

"The Florida mayor said the threat of legal challenges and other expenses made building a new waste-to-energy facility too difficult. She now recommends landfilling to meet long-term capacity needs."