- Email:
- ccallah@iu.edu
- Areas of Interest:
- Extreme climate events
- Attribution science
- Climate economics
- Health impacts of climate change
SPEA 333
Education
- Ph.D., Dartmouth College, 2023
Courses
- SPEA-R 521 Domestic Environmental Policy
Biography
Christopher Callahan is a climate scientist whose work focuses on the economic and social impacts of climate change. He uses tools from both physical climate science and quantitative social science to assess how to extreme climate events such as heat waves and El Niño events affect human health and economic growth around the world. He has also worked to develop quantitative frameworks for climate accountability, showing how major countries and fossil fuel firms have altered local climate and amplified the resulting social impacts across the globe. Before coming to IU, he received his Ph.D. from Dartmouth College and worked as a Postdoctoral Scholar at Stanford University.
Selected Works
- Callahan, C.W., Trok, J., Wilson, A., Gould, C., Heft-Neal, S., Diffenbaugh, N.S., & Burke, M. (2025) “Increasing risk of mass human heat mortality if historical weather patterns recur.” Nature Climate Change, 10.1038/s41558-025-02480-1
- Callahan, C.W. & Mankin, J.S. (2025) “Carbon majors and the scientific case for climate liability.” Nature, 10.1038/s41586-025-08751-3
- Callahan, C.W. & Mankin, J.S. (2023) “Persistent effect of El Niño on global economic growth.” Science, 10.1126/science.adf2983