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April 10, 2026Communications Earth & EnvironmentOpen Access

Anthropogenic aerosols override greenhouse gases in Sahel climate change

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Authors

HNHyacinth C. NnamchiGEOMAR Helmholtz Centre for Ocean Research KielSFStephanie FiedlerGEOMAR Helmholtz Centre for Ocean Research Kiel

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Implication

Model Simulations Show Anthropogenic Aerosols Influence Climate Change in Sahel, Suggesting New Assessment Methods.

Key Points

  • To determine the primary drivers of climate changes in the Sahel, focusing on the roles of aerosols and greenhouse gases.
  • Implemented ensembles of climate model simulations.
  • Analyzed the effects of anthropogenic aerosols on the Hadley Cell.
  • Examined regional climate variations over several decades.
  • Climate changes in the Sahel are primarily driven by anthropogenic aerosols.
  • Aerosol impact is 3.5 to 5.3 times stronger than that of greenhouse gases.
  • Aerosols caused a slowdown of the Hadley Cell, intensifying drought conditions.

Cite This Study

Nnamchi et al. (2026) studied this question.

synapsesocial.com/papers/69d8958f6c1944d70ce069eahttps://doi.org/10.1038/s43247-026-03474-3
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