The Yale School of Management Courtesy of the Yale School of Management

From major league batting averages to the blogger's 50 All-Time Greatest Guitar Riffs, we are a nation obsessed by rankings. It was probably inevita-ble, then, that we should end up applying this obsession to the environment. Each week seems to bring a new list or table. Top-selling hybrid: Toyota Prius. Most sustainable city: Portland, Oregon. Few surprises there. But here's a list that is less predictable, and one that may have even greater relevance to our future. Net Impact, a San Francisco-based organization of MBAs, graduate students, and business professionals, recently evaluated ethical and socially responsible leadership in U.S. business schools. In the category of environmental sustainability, the top five MBA programs were offered by:

1. Bainbridge Graduate Institute,
   Bainbridge Island, Washington
2. Presidio School of Management,
   San Francisco
3. Ross School of Business,
   University of Michigan
4. Johnson Graduate School of
   Management, Cornell University
5. Yale School of Management,
   Yale University (above)