Heat and Learning
Abstract
We demonstrate that heat inhibits learning and that school air conditioning may mitigate this effect. Student fixed effects models using students who retook the PSATs show that hotter school days in the years before the test was taken reduce scores, with extreme heat being particularly damaging. Weekend and summer temperatures have little impact, suggesting heat directly disrupts learning time. New nationwide, school-level measures of air conditioning penetration suggest patterns consistent with such infrastructure largely offsetting heat’s effects. Without air conditioning, a 1°F hotter school year reduces that year’s learning by 1 percent. Hot school days disproportionately impact minority students, accounting for roughly 5 percent of the racial achievement gap. (JEL I21, I24, J15, Q54)
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School Finance Reform and the Distribution of Student Achievement
Lafortune, J., Rothstein, J., & Schanzenbach, D. W. (2018) · American Economic Journal: Applied Economics · doi:10.1257/app.20160567 · Cited by 415 · see citing works
Drought of opportunities: Contemporaneous and long-term impacts of rainfall shocks on human capital
Shah, M., & Steinberg, B. M. (2017) · Journal of Political Economy · doi:10.1086/690828 · Cited by 373 · see citing works
Heal, G., & Park, J. (2016) · Review of Environmental Economics and Policy · doi:10.1093/reep/rew007 · Cited by 179 · see citing works
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School Finance Reform and the Distribution of Student Achievement
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Learning is inhibited by heat exposure, both internationally and within the United States
Park, R. J., Behrer, A. P., & Goodman, J. (2020) · Nature Human Behaviour · doi:10.1038/s41562-020-00959-9 · Cited by 187 · see citing works
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Wen, J., & Burke, M. (2022) · Nature Sustainability · doi:10.1038/s41893-022-00956-y · Cited by 104 · see citing works
Education outcomes in the era of global climate change
Prentice, C. M., Vergunst, F., Minor, K., & Berry, H. L. (2024) · Nature Climate Change · doi:10.1038/s41558-024-01945-z · Cited by 70 · see citing works
Borzino, N., Otto, M., Kjellstrom, T., & Kai Wei Lee, J. (2026) · Environmental Research: Climate · doi:10.1088/2752-5295/ae8320
- Authors
- Park, R. J., Goodman, J., Hurwitz, M., & Smith, J.
- Affiliations
- University of California, Los Angeles (US)
- Brandeis University (US)
- College Board (US)
- Georgia State University (US)
- Venue
- American Economic Journal: Economic Policy
- Publisher
- American Economic Association
- Published
- 2020-05-01
- Volume
- 12
- Issue
- 2
- Pages
- 306-339
- ISSN
- 1945-7731 (ISSN-L)
- 1945-774X
- OpenAlex
- W2805122960
- Cited by
- 230
- References
- 4
- Citations by year
- 2026: 47 · 2025: 35 · 2024: 40 · 2023: 37 · 2022: 31 · 2021: 27 · 2020: 9 · 2019: 4
- FWCI
- 39.41
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- American Economic Journal Economic Policy (publishedVersion)
- OpenBU (Boston University) (publishedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- Topics
- Social Sciences › Education › School Choice and Performance
- Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Climate Change and Health Impacts
- Social Sciences › Education › Educational Outcomes and Influences
- Keywords
- extreme heat, academic performance, racial achievement gap, minority students, school climate
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