Toxic waste and pollution is an example of an externality that absolutely should be regulated, but it's not necessary to do that via zoning. Just specify how mu

Toxic waste and pollution is an example of an externality that absolutely should be regulated, but it's not necessary to do that via zoning. Just specify how much space such a factory must have to the nearest residential area in order to be built. That's not a zoning law. That's just a business usage law. Similar to how I can't make noise in my neighborhood past 10PM.