Atlantic Cities: It's been an unfortunate iron law of the modern era that greenhouse gas emissions grow at the same time that economies do. The higher the standard of living in a country or metro area, the larger, per capita, its environmental footprint becomes. In practice, this means that wealthier economies trade foot traffic for cars, small homes for larger ones, local travel for airplane tickets, small-scale industry for major manufacturing, and homemade products for cheaper goods produced half a world away....