1 bio

I’m a PhD candidate at the Brown University Department of Sociology. My research uses computational, spatial, and quantitative methods to investigate core sociological questions, with a focus on long-term trajectories of social and environmental change in cities. I also have an enduring interest in political ecology and science and technology studies. Check out my work using the links below. Thanks for visiting!

2 research

recent work


— please contact me for copies of any publications —


+ publications +

Candipan, J. and Tollefson, J. (2024) “Machine learning and large-scale data for understanding urban inequality.” Invited chapter for The Oxford Handbook of the Sociology of Machine Learning (Borch, C. and Pardo-Guerra, J.P., eds.).

Tollefson, J., Frickel, S., Gonsalves, S., and Marlow, T. (2023) “Parks, people and pollution: A relational study of socioenvironmental succession.” City & Community (special issue: Environmentalizing Urban Sociology) 22(4): 286–307.

Tollefson, J., Frickel, S., Gonsalves, S., Marlow, T., Sucsy, R., Byrns, M., and Orpen-Tuz, M. (2023) “Early childcare and education in a post-industrial landscape: Inequalities in exposure to active and relic manufacturing in metropolitan Providence, Rhode Island.” Environmental Justice 16(4): 309-320.

Frickel, S. and Tollefson, J. (2022) “When environmental inequality racialized: Historical evidence from Providence, Rhode Island.” Socius 8:1-14.

Tollefson, J., Frickel, S. and Restrepo, MI. (2021) “Feature extraction and machine learning techniques for identifying historic urban environmental hazards.” PLoS ONE 16(8): e0255507.

  • Finalist: 2022 John Odland Award, American Association of Geographers, Spatial Analysis and Modeling Group

Tollefson, J. and Panikkar, B. (2020) “Impact assessment, public engagement, and environmental knowledge production: Large mine permitting in Alaska’s Yukon-Kuskokwim Delta.” Journal of Political Ecology 27(1): 1166-1188.

  • Awarded: 2021 Graduate Student Paper Award, Rural Sociological Society, Natural Resources RIG

Tollefson, J. (2020) “Post-Fukushima discourse in the US press: Quantified knowledge, the technical object, and a panicked public.” Public Understanding of Science 29(7): 670-687.

Panikkar, B. and Tollefson, J. (2018) “Land as material, knowledge and relationships: Resource extraction and subsistence imaginaries in Bristol Bay, Alaska.” Social Studies of Science 48(5): 715-739.


+ under review +

Tollefson, J., Frickel, S., and Gore, C., and Helgeson, J. “Community resilience planning: What new methods reveal about the formation and transformation of a field.” Under review.

Tollefson, J., Frickel, S., Helgeson, J., and Gore, C. “Adapting to adaptation: Conceptual development and field formation in community resilience planning.” Under review.


+ working papers +

Tollefson, J. “Environmental risk and the reorganization of urban inequality in the late 19th and early 20th century.” Working paper.

  • Awarded: 2023 IPUMS USA Student Research Award
  • Awarded: 2024 Brent K. Marshall Award, Society for the Study of Social Problems, Environment and Technology Division
  • Awarded: 2024 Graduate Student Paper Prize, Spatial Structures in the Social Sciences, Brown University
  • Honorable mention: 2024 Candace Rogers Award, Eastern Sociological Society
  • Honorable mention: 2024 Graduate Student Paper Award, Environmental Sociology Section of the ASA

Tollefson, J. “HOLC redlining as an environmental process.” Working paper.

Tollefson, J. “Suburban development and agricultural land conversion: New landscapes of environmental inequality.” Working paper.


+ public sociology +

Tollefson, J. (2023) Redlining and segregation in Providence, RI. Essay for Mapping Inequality. Richmond, VA: University of Richmond Digital Scholarship Lab.

Tollefson, J. and Frickel, S. (2021) “Gasworks, lost and found.” Urban Omnibus. July 1.

Tollefson, J. and Urso, M. (2018) “Black Lives Matter at St. Patrick’s Day Parade.” Op-ed in the Providence Journal. April 2.


+ ongoing projects +

Socio-ecological city project. Collaborative project collecting a wide array of longitudinal spatial data on industrial, environmental, and social change in the Providence, RI area.


4 contact

5 cv