Durham was one of North Carolina's first Cool Cities. Duke ranked #5 in the national Sierra Club's list of "Cool Colleges." From that article (Oct 2007):
...dinky little Durham, North Carolina with a population just over 200,000 has the most LEED buildings in the state and ranks in the top five nationally on a per capita basis.
All of the buildings Duke has built over the past 5 years meet LEED standards (environmental sustainability at Duke).
The Blue Devils are turning green, mandating certification by the U.S. Green Building Council for all new construction, improving on-campus bike trails, collecting 17 types of recyclables, and pouring money into wind and small hydropower projects.