A global assessment of the potential impact of climate change on world food supply suggests that doubling of the atmospheric carbon dioxide concentration will lead to only a small decrease in global crop production. But developing countries are likely to bear the brunt of the problem, and simulations of the effect of adaptive measures by farmers imply that these will do little to reduce the disparity between developed and developing countries.
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Rosenzweig, C., Parry, M. Potential impact of climate change on world food supply. Nature 367, 133–138 (1994). https://doi.org/10.1038/367133a0
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