sentences:  He served as President of Second Nature from its establishment in March 1993 through August 2012—a period of almost 20 years.In 2012 he became a principal of Sustainable Visions, LLC, a frequent consultant to higher education, industry and non-profit organizations on establishment of sustainability principles and programs.He is the co-coordinator of the Intentional Endowments Network that supports colleges, universities, and other mission-driven tax-exempt organizations in aligning their endowment investment practices with their mission, values, and sustainability goals.