We must recognize that if we try to make one neighborhood greener by stopping new building, we can easily make the world browner, by pushing new development to someplace far less environmentally friendly. The environmentalists of coastal California may have made their own region more pleasant, but they are harming the environment by pushing new building away from Berkeley suburbs, which have a temperate climate and ready access to public transportation, to suburban Las Vegas, which is all about cars and air-conditioning.
