articleProceedings of the National Academy of SciencesDec 16, 2013BRONZE OA

Assessing agricultural risks of climate change in the 21st century in a global gridded crop model intercomparison

Goddard Institute for Space Studies · National Aeronautics and Space Administration · +12 more institutions

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Abstract

Here we present the results from an intercomparison of multiple global gridded crop models (GGCMs) within the framework of the Agricultural Model Intercomparison and Improvement Project and the Inter-Sectoral Impacts Model Intercomparison Project. Results indicate strong negative effects of climate change, especially at higher levels of warming and at low latitudes; models that include explicit nitrogen stress project more severe impacts. Across seven GGCMs, five global climate models, and four representative concentration pathways, model agreement on direction of yield changes is found in many major agricultural regions at both low and high latitudes; however, reducing uncertainty in sign of response in…

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