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Megacities are causal pacemakers of extreme heatwaves

Earth Sciences

Megacities are causal pacemakers of extreme heatwaves

X. Yang, Z. Wang, et al.

This groundbreaking study by Xueli Yang, Zhi-Hua Wang, Chenghao Wang, and Ying-Cheng Lai explores the intricate causal interactions during heatwaves across 520 U.S. urban sites. It uncovers how megacities like New York and Chicago shape the urban network during these extreme events, emphasizing the link between population size and heatwave severity. The findings are poised to enhance heatwave prediction and adaptation strategies.

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Playback language: English
Abstract
This study investigates the causal interactions during heatwaves across 520 urban sites in the U.S., combining complex network and causal analysis. Megacities like New York City and Chicago are causally connected with most other cities and mediate the urban network structure during heatwaves. A positive correlation exists between causality strength and megacity populations, supporting the contribution of human activities to urban heatwaves. The findings are informative for heatwave prediction and adaptation.
Publisher
Nature Communications
Published On
Feb 27, 2024
Authors
Xueli Yang, Zhi-Hua Wang, Chenghao Wang, Ying-Cheng Lai
Tags
heatwaves
urban sites
causal analysis
megacities
network structure
human activities

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