Meet the Office

Our staff and graduate assistants are committed to making the Graduate Program in Environmental and Sustainability Studies the best it can be! We would like to introduce those who work behind the scenes with the Masters of Environmental and Sustainability Studies Program and Sustainable Agriculture.

Interim Program Director: Tim Callahan

tim callahan

Welcome! As program director I can help you plan your program of study and connect you with opportunities on and off-campus. I am a professor in Geology and Environmental Geosciences and my research area is environmental hydrology and water resources. From 2010-2017 I was program director of EVSS. I’ve been involved in the program since 2001 through teaching (EVSS 538, Hydrogeology and lab; EVSS 639, Wetlands and Watersheds) and collaborating with many students on their research projects.

You can learn more about Dr. Callahan's research and publications here!

Program Coordinator: Lucy Davis


My name is Lucy Davis and I am the Program Coordinator for the Masters of Environmental and Sustainability Studies Program, which means I am here to help you determine your class schedules, navigate your research projects, apply for funding, and help you make the best out of your graduate experience here at the College! I am also the Coordinator for the Masters of Environmental and Sustainability Studies Student Gardens. I help manage our planting rotations, our education and outreach events, and our collaborations with other Charleston, South Carolina community organizations. I have been affiliated with the Masters of Environmental and Sustainability Studies since 2015 and have been Program Coordinator since February of 2018. Please feel free to reach out to me with any questions! My door is always open.

EVSS Office Graduate Assistants:

Cheyenne Cunningham


Cheyenne graduated from Coastal Carolina University in December 2018. She majored in Ocean Policy and Legal Studies, with a minor in Pre-Law. Throughout undergraduate studies, Cheyenne deployed acoustic tags on lemon sharks at the Bimini Biological Field Station in the Bahamas, sat through hearings to protect North Atlantic right whales as an ambitious United States Congressional intern, and explored the critical environment of the Galapagos Islands as a teacher assistant to other undergraduate students. These opportunities, among others, ignited a passion within Cheyenne to improve the coordination between knowledge-holders and decision-makers with respect to the environment. Enrolled into the EVSS/MPA Concurrent Program in 2021 to pursue a career in ocean management, she will channel her research around the ocean science and ocean policy interface.

Sarah Haslinger


Sarah graduated from Florida Southern College in May 2021. She double majored in Marine Biology and Environmental Studies, and has a minor in Communications. She previously worked as a Biology Teaching Assistant at Florida Southern where she helped students in biology labs. Sarah is from Buffalo, NY and worked as a Boat Steward for the SUNY Research Foundation in 2020 where she educated boaters on Lake Erie about aquatic invasive species in New York State. Sarah is interested in conservation, organizational sustainability, and public outreach. In her free time, Sarah enjoys watching the Buffalo Bills, exercising, and going to the beach.