Firefighters are still battling a blaze at a massive frozen-food storage facility near downtown Los Angeles six days after the fire started. Smoke is pouring from the warehouse, which is heavily insulated and whose roof is covered in solar panels. The fire started Wednesday, possibly linked to work on solar panels. Fires in cold storage facilities can burn for weeks because of their construction. Air quality warnings remain in effect, and residents are concerned about the materials burning inside. Officials warned residents in Boyle Heights to stay indoors or wear masks due to smoke pollution.

As President Donald Trump's administration seeks to roll back funding for transit, walking and biking projects, some states are trying to advance them on their own. A seven-state group known as the Clean Rides Network gained momentum this year in its advocacy for environmentally friendly transportation projects that it says the federal government has abandoned. Lawmakers in Maryland, Illinois and Massachusetts have introduced proposals this session that would require major highway construction to be offset by other projects that reduce greenhouse emissions. Colorado and Minnesota enacted similar policies in past sessions.