Errol Mazursky

Executive Director

As Executive Director, Errol manages the day-to-day operations of the organization in addition to the recruitment and selection process of ELP's regional networks, oversees the development and planning of fellowship programming and maintains ELP's national network of 500 Senior Fellows. Previously, Errol was a public health fellow at the U.S. Environmental Protection Agency where he worked on community outreach programs and the development of international cohort studies to investigate the environment's impact on children's health and development. Errol served in the U.S. Peace Corps as a health volunteer in The Gambia, West Africa and was a Crisis Corps Volunteer in New Orleans, LA where he contributed to the response effort of Hurricane Katrina. Errol currently serves on the Board of the Emerging Wildlife Conservation Leaders Program, and is a former Board Director of Greenbelt Homes Inc., and the Greenbelt Development Corporation. In 2011 Errol was awarded a TogetherGreen Fellowship in recognition of his expertise in leadership and network weaving and in 2013 received an Emerging Leader Grant from the Claneil Foundation.

Jenna Ringelheim

National Program Director

Jenna is ELP's National Program Director, and is a Senior Fellow from the 2007 New England Regional Network. Jenna has worked for a variety of environmental non-profits in leadership positions, including The Northwest Earth Institute, Wild Gift, The Trust for Public Land, and the Nature Conservancy. Jenna has a passion for travel and the outdoors. In her spare time, Jenna enjoys recreating with her two Portuguese water dogs, Tasman and Millie. As a writer, Jenna contributes to a variety of magazines and published her first book in 2008, entitled "Best Hikes with Dogs, Boston and Beyond.” Jenna has a BA in Environmental Studies and Anthropology from Skidmore College, and a Masters degree in Urban and Environmental Policy and Planning from Tufts University, and an MBA in Sustainable Systems from the Bainbridge Graduate Institute.

Tatek Assefa

Program Coordinator

Tatek Assefa strongly identifies with his experience as a first-generation American and a “Third Culture Kid” and he grounds himself in the belief that a life spent in the service of others is a life well lived.  Born and raised in Madison, Wisconsin; he grew up in the multicultural/international Eagle Heights neighborhood.  His interest in learning about other people’s worldview began at his elementary school (which was comprised of students from over 70 nations) and followed him to the University of Wisconsin-Madison where he studied Cultural Anthropology and Religious Studies.  Social, global, and environmental justice and equality have been philosophically in line with Tatek’s personal values for as long as he can remember and he has consciously lived his life in a manner that reflects this.  After traveling, living and working abroad, Tatek returned to Madison and enrolled in the Sustainability Leadership graduate program at Edgewood College.  As the sole person of color in his graduate school cohort, he became acutely aware of the dearth of varied voices in the sustainability conversation, which led him to research, develop and work on projects specifically designed to move people towards social and environmental justice and equity.  Tatek has also served as an editor and writer-at-large for international monthlies on two different continents and has written eleven (short) filmed projects and one staged play.  His interests lie in social justice and equity, leadership, communication, and sustainability.