@redcrew@mstdn.social yup. two stroke motors are shockingly dirty burning, and decades of forcing cars to be less polluting has made them shockingly clean (for what they do) *and* developed absurdly effective post-processing (for what they do) like catalytic converters. I would not be sad to ban two-stroke motors from nearly everywhere. It'd spur a lot of small four-stroke progress. Yes, they're more complicated, but there's little excuse nowadays and the stragglers are causing more pollution than they're worth. They are much worse than most people realize. > CARB’s own tally is blunter. Smog-forming emissions from small off-road engines in California already exceed those from every passenger car in the state, and the board projects they will be nearly double by 2031.