Wynn Calder became director of ULSF in 2007 when it ceased its affiliation with The Humane Society of the United States. He had been the associate director since 1999.

Calder is review editor for the Journal of Education for Sustainable Development and news editor for the International Journal of Sustainability in Higher Education, and has written extensively on the topic of education for sustainability. He was editor of the ULSF bi-annual report, The Declaration, from 1997 through 2005. Mr. Calder was a co-founder and steering committee member of the U.S. Partnership for Education for Sustainable Development. He serves on the advisory council of the Cloud Institute for Sustainability Education, which focuses on primary and secondary education, and he is on the senior council of the Association for the Advancement of Sustainability in Higher Education.

Calder is also principal at Sustainable Schools, LLC. He consults with K-12 schools, colleges and universities to build environmental literacy and sustainability into strategic planning, teaching and institutional practice. Since 2003, he has been primary consultant and advisor to the National Association of Independent Schools (NAIS) on sustainability and helped in the conception and launch of their sustainabilitly initiative (go to www.nais.org/go/green) and annual summer Institute for Leadership in Sustainability.

Prior to joining ULSF, Wynn worked for six years at Harvard University in academic counseling, admissions and administration. From 1984 to 1986, he taught history and was an assistant director of admissions at Milton Academy. Wynn attended Germantown Friends School in Philadelphia. He received his Bachelors degree from Harvard University in 1984 and his Master's from Harvard Divinity School in 1993. Wynn lives with his family in Washington, DC.

Selected publications include:

Calder, Wynn and Dautremont-Smith, Julian, “Higher Education: Emerging Laboratories for Inventing a Sustainable Future,” in Agenda for a Sustainable America, John C. Dernbach ed., Environmental Law Institute, 2009.

Calder, Wynn, “Driving the Sustainability Initiative at Your School,” in Welcome to the Jungle: A Business Officer’s Guide to Independent School Finance and Operations, National Business Officers Association, 2009.

Calder, Wynn, "The UN Decade of Education for Sustainable Development: A Progress Report," in The Declaration, Vol. 7, No. 2, Fall 2005.

Calder, Wynn and Clugston, Richard, “Lighting Many Fires: South Carolina’s Sustainable Universities Initiative,” in Higher Education and the Challenge of Sustainability: Problematics, Promise, and Practice, Peter Blaze Corcoran and Arjen E.J. Wals, Eds., Kluwer Academic Publishers: Dordrecht, 2004.

Calder, Wynn and Clugston, Richard, “Higher Education,” in Stumbling Toward Sustainability, John C. Dernbach, Ed., Environmental Law Institute: Washington, DC, 2002.

Also published as an article entitled “Progress Toward Sustainability in Higher Education” in The Environmental Law Reporter: News & Analysis, Vol. XXXIII, No. 1, Environmental Law Institute, January 2003.