USA is not a densely populated country, so I wouldn't call it overpopulated. And yet, USA is one of the biggest polluting countries per capita (if not the top p

USA is not a densely populated country, so I wouldn't call it overpopulated. And yet, USA is one of the biggest polluting countries per capita (if not the top polluter). As far as I know, people in dense cities also pollute far less than other (less heating per capital, smaller households, less commute, more walking/biking...).