Articles | Volume 14, issue 1
https://doi.org/10.5194/esd-14-255-2023
https://doi.org/10.5194/esd-14-255-2023
Research article
 | 
01 Mar 2023
Research article |  | 01 Mar 2023

Persistent La Niñas drive joint soybean harvest failures in North and South America

Raed Hamed, Sem Vijverberg, Anne F. Van Loon, Jeroen Aerts, and Dim Coumou

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Latest update: 11 Jul 2024
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Short summary
Spatially compounding soy harvest failures can have important global impacts. Using causal networks, we show that soy yields are predominately driven by summer soil moisture conditions in North and South America. Summer soil moisture is affected by antecedent soil moisture and by remote extra-tropical SST patterns in both hemispheres. Both of these soil moisture drivers are again influenced by ENSO. Our results highlight physical pathways by which ENSO can drive spatially compounding impacts.
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