As a graduate student, St. Clair led a student campaign for the University of California system to adopt a comprehensive green building and clean energy planning policy. The University of California then hired him to implement this policy.[5][6] This policy has included powering new buildings with electricity generated without carbon emissions,[7] and increasing the number of campus buildings that are LEED certified,[8] including every building on the new campus of the University of California, Merced.[9] It has also included creating its own utility company, including financing new solar power generation facilities.[10]
He is a founding member of the Board of Directors for the Association for the Advancement of Sustainability in Higher Education.[6]
In 2020, he was named a LEED Fellow by Green Business Certification Inc.[9][11]
