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Attribution of 2020 hurricane season extreme rainfall to human-induced climate change

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  • Kevin A. Reed

    (Stony Brook University)

  • Michael F. Wehner

    (Lawrence Berkeley National Laboratory)

  • Colin M. Zarzycki

    (Pennsylvania State University)

Abstract

The 2020 North Atlantic hurricane season was one of the most active on record, causing heavy rains, strong storm surges, and high winds. Human activities continue to increase the amount of greenhouse gases in the atmosphere, resulting in an increase of more than 1 °C in the global average surface temperature in 2020 compared to 1850. This increase in temperature led to increases in sea surface temperature in the North Atlantic basin of 0.4–0.9 °C during the 2020 hurricane season. Here we show that human-induced climate change increased the extreme 3-hourly storm rainfall rates and extreme 3-day accumulated rainfall amounts during the full 2020 hurricane season for observed storms that are at least tropical storm strength (>18 m/s) by 10 and 5%, respectively. When focusing on hurricane strength storms (>33 m/s), extreme 3-hourly rainfall rates and extreme 3-day accumulated rainfall amounts increase by 11 and 8%, respectively.

Suggested Citation

  • Kevin A. Reed & Michael F. Wehner & Colin M. Zarzycki, 2022. "Attribution of 2020 hurricane season extreme rainfall to human-induced climate change," Nature Communications, Nature, vol. 13(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-29379-1
    DOI: 10.1038/s41467-022-29379-1
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    Cited by:

    1. Fabio de Oliveira Neves & Arlinda de Jesus Rodrigues Resende & Plinio Rodrigues dos Santos Filho & Breno Regis Santos, 2023. "Analysis of the Profile of the Greenhouse Gas Emissions in Brazil," Journal of Sustainable Development, Canadian Center of Science and Education, vol. 16(4), pages 135-135, July.
    2. Andrea Mah & Daniel Chapman & Ezra Markowitz & Brian Lickel, 2024. "Public preferences for sea-level rise adaptation vary depending on strategy, community, and perceiver characteristics," Mitigation and Adaptation Strategies for Global Change, Springer, vol. 29(8), pages 1-34, December.
    3. Cavallo, Eduardo A. & Gómez, Santiago & Noy, Ilan & Strobl, Eric, 2024. "Climate Change, Hurricanes, and Sovereign Debt in the Caribbean Basin," IDB Publications (Working Papers) 13351, Inter-American Development Bank.
    4. Kevin T. Smiley & Ilan Noy & Michael F. Wehner & Christopher C. Sampson & Oliver E.J. Wing & KayLynn Larrison, 2024. "Climate Change and Federal Aid Disbursements After Hurricane Harvey: An Extreme Event Attribution Analysis," CESifo Working Paper Series 11435, CESifo.
    5. Jeongbae Jeon & Hyeongryeol Lee & Seongsoo Yoon, 2022. "Optimal Section Design of Korean Agricultural Greenhouse Response to Climate Change Based on Monte Carlo Simulation," Agriculture, MDPI, vol. 12(9), pages 1-15, September.

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