Earth Sciences

Global urban structural growth shows a profound shift from spreading out to building up

S. Frolking, R. Mahtta, et al.

This study by Steve Frolking, Richa Mahtta, Tom Milliman, Thomas Esch, and Karen C. Seto explores the intriguing transition in global urban building growth patterns from horizontal to vertical development, revealing critical implications for material use and urban living.

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Playback language: English

Index

Abstract

This study examines global urban building growth rates over the past three decades using data from space-borne sensors. The findings reveal a significant shift from lateral urban expansion to more vertical development. While building fractional cover increased, growth rates decreased in most regions and large cities. Conversely, growth rates in microwave backscatter (correlating with building volume) increased in almost all regions and cities. This transition, occurring at varying rates and times across the globe, has substantial consequences for material and energy use, local climate, and urban living. Asian cities experienced the most significant growth rate increases.

Publisher

Nature Cities

Published On

Aug 05, 2024

Authors

Steve Frolking, Richa Mahtta, Tom Milliman, Thomas Esch, Karen C. Seto

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