Popular Science released its list of the 50 Greenest cities in the U.S. recently. Of course, liberal, green Seattle was on it. We came in eighth. It surprised no one at Seattlest HQ, however, that our neighbor to the South, namely Portland, came in first since some of us believe that Portland is better and we all love PDX regardless. Popular Science "collected survey data and government statistics for American cities of over 100,000 people......