American cities still have highly polluting industry located in highly valuable land better used for other purposes. Modern land use patterns left to true market forces would leave dense cities some of the cleanest in terms of air pollution. Yet they are not. Join guest Greg Bourget and I as we discuss air pollution in Portland, a city that mirrors most US cities.

http://portlandcleanair.org

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Disclosure: I am currently a board member for Portland Clean Air and Greg worked on my campaign for City Council as Campaign Director.