Staff and Interns


Tanja Srebotnjak, Director (she/her/hers)

Class of ’66 Environmental Center | Room 206 | 413-597-4197 | [email protected]

Tanja  has worked on sustainability since 2000 and in a variety of settings, including at the United Nations, the Natural Resources Defense Council, an environmental think tank, academia, and an independent K-12 school.  She holds a Masters in statistics from Dortmund Technical University and a PhD in environmental statistics and policy from the Yale School of the Environment.

Mike Evans, Associate Director (he/him/his)

Class of ’66 Environmental Center | Room 208 | 413-597-4462 | [email protected]

Mike joined the Zilkha Center team in 2014.  Prior to his time at Williams, he worked in nonprofits focusing on food security, youth empowerment, sustainable agriculture, and food justice in Boston, Austin, and Salt Lake City.  Mike received a B.A. in African and African American Studies from Dartmouth College and an M.A. in Community Leadership from Westminster College.

Christine Seibert, Sustainability Coordinator (she/her/hers)

Class of ’66 Environmental Center | Room 207 | 413-597-4422 | [email protected]

Christine has a background in environmental education, student engagement, and municipal greenhouse gas accounting. One of her greatest joys in life is seeing young people empowered to make positive change in their communities. She holds a B.S. in biology from Gordon College and is working on her masters in sustainability at Harvard Extension School.

DeeDee Lewis, Administrative Coordinator (she/her/hers)

Class of ’66 Environmental Center | Room 108 | 413-597-2346 | [email protected]

Summer 2023 Interns