Same reason why cruise ships burn highly toxic "bunker fuel" daily. Same reason why toxic oil fracking exists and burn off millions of dollars of natural gas i

Same reason why cruise ships burn highly toxic "bunker fuel" daily. Same reason why toxic oil fracking exists and burn off millions of dollars of natural gas into atmosphere daily. Same reason why there are allowed toxic zones in populated areas https://projects.propublica.org/toxmap/ https://projects.propublica.org/toxmap/ Same reason why highly toxic leaded fuel is still used daily in aviation for decades despite banned everywhere else.