Nature Communications (Jun 2022)

Pleistocene drivers of Northwest African hydroclimate and vegetation

  • Nicholas A. O’Mara,
  • Charlotte Skonieczny,
  • David McGee,
  • Gisela Winckler,
  • Aloys J.-M. Bory,
  • Louisa I. Bradtmiller,
  • Bruno Malaizé,
  • Pratigya J. Polissar

DOI
https://doi.org/10.1038/s41467-022-31120-x
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 11

Abstract

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Plant-wax isotope and dust flux records reveal that the long-term variability of the Northwest African monsoon is controlled by tropical solar radiation gradients. Grasslands expand into the Sahara during strong monsoons, but the ultimate composition of the ecosystem is controlled by CO2.