"The U.S. Chamber of Commerce is splitting with President Trump over his rollback of Obama-era clean car standards."

"Engineers in southern California are hard at work designing the biggest wildlife corridor in the world, to extend over US Highway 101 to the north-west of Los Angeles."

"A coal company has been dealt another legal blow in its attempt to build an export terminal on the lower Columbia River. The Washington Court of Appeals upheld a lower court ruling Tuesday that was being challenged by Millennium Bulk Terminals and Northwest Alloys Inc."

"The taut rope that was lowering an underwater listening station to the ocean’s floor collapsed on the tug boat’s deck with a slap, signaling to the crew on board that their mission was complete. They had successfully deployed a sound system in the Santa Barbara Channel."

"The White House, blindsided by a pact between California and four automakers to oppose President Trump’s auto emissions rollbacks, has mounted an effort to prevent any more from joining the other side."

"A group of House Democrats is urging General Motors Co. and other leading automakers to join the four car manufacturers that have broken with the Trump administration and signed on to a deal with California to keep improving vehicle fuel economy."

"Congress is looking to strengthen the nation's transportation network by making it better able to withstand the effects of climate change, even as government agencies spend billions of dollars to fix roads after natural disasters."

"Two prominent environmental groups sued the Trump administration Monday, arguing it is breaking the law by cutting penalties for automakers that do not meet Obama-era fuel efficiency standards."

"The top U.S. auto safety official, a key player in efforts by President Donald Trump’s administration to rollback the nation’s vehicle fuel efficiency requirements, will step down at the end of the month, the Transportation Department announced on Monday."

"A group of House and Senate Republicans are pressing the Department of Transportation to intervene against a Washington state law that they say could prevent the shipment of Bakken crude oil and natural gas to Pacific Northwest ports and refiners."