Conference on MCDM for Sustainable Energy and Transportation Systems
MCDM 2008 – 19th International Conference on Multiple Criteria Decision Making – MCDM for Sustainable Energy and Transportation Systems
The University of Auckland
7 – 12 January 2008, Auckland, New Zealand
The MCDM folks have their own society and the above is their conference. Their web site has an extensive bibliography of MCDM work, could be a good place to look for more OR/Sustainability overlaps including in their Journal of Multi-Criteria Decision Analysis.