Cited by 3,523Hydrology and Drought AnalysisClimate variability and modelsGeology and Paleoclimatology Research

Drought under global warming: a review

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Dai, Aiguo·2011·WIREs Climate Change

Abstract

This article reviews recent literature on drought of the last millennium, followed by an update on global aridity changes from 1950 to 2008. Projected future aridity is presented based on recent studies and our analysis of model simulations. Dry periods lasting for years to decades have occurred many times during the last millennium over, for example, North America, West Africa, and East Asia. These droughts were likely triggered by anomalous tropical sea surface temperatures (SSTs), with La Niña‐like SST anomalies leading to drought in North America, and El‐Niño‐like SSTs causing drought in East China. Over Africa, the southward shift of the warmest SSTs in the Atlantic and warming in the Indian Ocean are responsible for the recent Sahel droughts. Local feedbacks may enhance and prolong drought. Global aridity has increased substantially since the 1970s due to recent drying over Africa, southern Europe, East and South Asia, and eastern Australia. Although El Niño‐Southern Oscillation (ENSO), tropical Atlantic SSTs, and Asian monsoons have played a large role in the recent drying, recent warming has increased atmospheric moisture demand and likely altered atmospheric circulation patterns, both contributing to the drying. Climate models project increased aridity in the 21 st century over most of Africa, southern Europe and the Middle East, most of the Americas, Australia, and Southeast Asia. Regions like the United States have avoided prolonged droughts during the last 50 years due to natural climate variations, but might see persistent droughts in the next 20–50 years. Future efforts to predict drought will depend on models' ability to predict tropical SSTs. WIREs Clim Change 2011 2 45–65 DOI: 10.1002/wcc.81 This article is categorized under: Paleoclimates and Current Trends > Detection and Attribution Paleoclimates and Current Trends > Modern Climate Change Assessing Impacts of Climate Change > Evaluating Future Impacts of Climate Change Assessing Impacts of Climate Change > Observed Impacts of Climate Change

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  • Decreases in crop yield, due to drought and other factors, will pose a threat to food security.

    “Decreases in crop yield, due to drought and other factors, will pose a threat to food security, as already evidenced by long periods of drought in North America, West Africa, and East Asia [157,636].”

    From Tackling climate change with machine learning (2023) · cites this paper as [157]

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Authors
Dai, A.
Affiliations
NSF National Center for Atmospheric Research (US)
Corresponding author
Dai, Aiguo
Venue
WIREs Climate Change
Publisher
Wiley
Published
2010-10-19
Volume
2
Issue
1
Pages
45-65
ISSN
  • 1757-7780 (ISSN-L)
  • 1757-7799
OpenAlex
W2165301409
Cited by
3,523
References
136
Citations by year
2026: 173 · 2025: 241 · 2024: 317 · 2023: 283 · 2022: 348 · 2021: 327 · 2020: 295 · 2019: 296 · 2018: 227 · 2017: 221 · 2016: 209 · 2015: 185 · 2014: 141 · 2013: 120 · 2012: 99
FWCI
73.49
Type
journal article
Language
en
Open access
Locations
  • Wiley Interdisciplinary Reviews Climate Change (publishedVersion)
  • Zenodo (CERN European Organization for Nuclear Research) (submittedVersion, public-domain)
Funders
  • National Science Foundation
  • National Center for Atmospheric Research
Topics
  • Physical Sciences › Environmental Science › Global and Planetary Change › Hydrology and Drought Analysis
  • Physical Sciences › Environmental Science › Global and Planetary Change › Climate variability and models
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Geology and Paleoclimatology Research
Keywords
drought, global warming, aridity trends, tropical sea surface temperature anomalies, ENSO, Sahel drought, climate model projections, drought forecasting, Asian monsoon, atmospheric circulation changes

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