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. 2023 Jul 3;120(28):e2219825120. doi: 10.1073/pnas.2219825120

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Copyright © 2023 the Author(s). Published by PNAS.

This article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND).

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Fig. 1. — Historical and projected global changes in CDHW characteristics: (A–C) Variation in observed and GCM-based MME mean projections of summer CDHW characteristics—(A) frequency, (B) duration, and (C) severity—spatially averaged over the globe for recent observed period (1982 to 2019) and model simulated future period (2020 to 2099) based on the selected future climate scenarios (SSP1-2.6, SSP2-4.5, and SSP5-8.5). The shading represents the intermodel variability or spreads based on 5 to 95th percentile bounds, and (D–F) 7-y moving average of CDHW characteristics—(D) frequency, (E) duration, and (F) severity—for four different areal thresholds (20%, 40%, 60%, and 80%) based on recent observed and SSP5-8.5 scenario.