California Cap and Trade

California air regulators have updated a key climate program Friday. The program, known as cap and trade, sets a declining limit on total planet-warming emissions in the state from major polluters. The rules are meant to implement laws Newsom signed last year reauthorizing the program through 2045. But environmental groups say the changes would instead weaken the program and undercut efforts to curb planet-warming emissions. The oil industry, meanwhile, says the program will still hinder efforts to bring down energy costs in the notoriously expensive state. California leaders have faced increased pressure in recent years to center affordability when shaping climate policies.