Clark's primary interest is the intersection of collective learning and collective action. She studies how environmental education can contribute to management of common pool resources, and how informal learning processes engage with behavior change for individuals and communities around environmental issues. She applies these concepts in work around campus sustainability, and leads the Education Subcommittee of Duke's Campus Sustainability Committee. She uses and teaches qualitative research methods, including use of qualitative research software.

Prior to completing her PhD, she worked for 5 years as the Director of the Center for Environmental Education in the Nicholas School, and for 12 years doing air pollution regulatory work under contract for the US EPA.

Areas of interest: environmental education, free-choice learning, sustainability education, qualitative research methods, collective action, community behavior, responsible environmental behavior, informal learning, food/environment intersection