Is there any way to convert the vehicular emissions from cars during journey to oxygen or safer gases to eliminate/decrease vehicular pollution?
My question is keeping in mind most populated and polluted countries where majority of people can't afford for/not willing to buy H2-run cars nor get rid of existing fuel cars nor interested in using bicycles.
In simple terms: Is there a possibility for real time emission converter? Do they already exist or is there any research in this area? Any kind of help is appreciated.