A group called Sustainlane has ranked America’s largest cities for their sustainability. Which is number one? Why, Portland, of course.
But I have a few questions about how they calculated their rankings. Most of their data are based on secondary sources. Take public transit, for example, which, they say, is based on the “2003 Texas Mobility Study.” Based on whatever this study is supposed to say, Portland gets a greenish score of 20 while Honolulu gets a yellow 28 (apparently, smaller numbers are better).
