Marcus has worked on issues involving linking science, policy and practice for over 30 years, and in diverse roles - as an advocate, a practitioner, and as a researcher. He is particularly interested in how people, through organizations and institutions, organize and respond to pressing social and environmental problems, and has worked on issues that include health, integration, climate change and Arctic change. He earned his PhD in Sociology in 2004 from Stockholm University, where he also was awarded his Associate Professorship.
At SEI he is Senior Research Fellow and leads the Arctic Resilience Assessment. The Arctic Council project, co-chaired by Sweden and the United States, investigates the resilience of social-ecological systems in the Arctic. Here the key research challenges include integration of the complementary insights provide by the social and natural sciences, better understanding the nature of cross-scale interactions driving change in the Arctic, and how to make that knowledge actionable.