In one sense, most schools are developing courses in sustainability or determining ways that their degree programs can incorporate this hot topic, but the profession is quickly recognizing its importance. As a result, all programs must address it. However, if you search programs on -- http://www.archschools.org/ -- through the advanced method that allows you to select Environment/Sustainability, the result reveals 72 programs. You will need to establish a few other criteria to further narrow your search.
Schools to Research:
Arizona State University - School of Sustainability
Ball State University - College of Architecture and Planning
U.S. Green Building Council
Green Building Links
AIA Committee on the Environment