and whats being completely ignored is where the concrete that leads to the urban heat island effect comes from as well as the health impact of this so-called "local effect" it's not local, more and more of the planet is becoming urbanized and it has a deleterious health impact, not to mention the ugly air pollution increase from more people driving more dirty fuel powered vehicles....air pollution shortens life expectancy more than tobacco does.
concrete, plastic, etc., all this garbage has but one source.....