Turning "environmental regulation" into a unified bloc that must be either supported or opposed in totality is a manipulative political maneuver and it should be forcefully rejected.
Regulations are not people, and they don't have rights. It is fair and reasonable to demand that environmental regulation justify its existence with hard, scientifically verifiable data or else get chopped. Clearly, banning leaded gasoline has that kind of justification, and therefore I'm strongly in favor of maintaining that ban and extending it wherever it isn't in place yet. The same reasonable standard should be applied to other regulations across the board.
The worst environmental crisis in human history is going largely unchecked. I find it hard to take seriously any argument that environmental regulation has gone too far as opposed to not nearly far enough.
If there's a specific regulation that can be shown to be doing more harm than good I'm cool with revisiting anything, but the common sense wisdom around environmental regulation has been corrupted by corporate public relations campaigns.
The alternative is not to have no environmental regulation. California could copy the regulations of any of the 49 other states and be much better off.
Says whom?
California has a huge population. California has a massive water shortage problem. California has wide areas vulnerable to wildfires. California has piles of small ecosystems that are fragile and can be easily wiped out.
Saying California could copy some states like Iowas regulations makes negative sense.