Abstract
Macro-economic assessments of climate impacts lack an analysis of the distribution of daily rainfall, which can resolve both complex societal impact channels and anthropogenically forced changes1,2,3,4,5,6. Here, using a global panel of subnational economic output for 1,554 regions worldwide over the past 40 years, we show that economic growth rates are reduced by increases in the number of wet days and in extreme daily rainfall, in addition to responding nonlinearly to the total annual and to the standardized monthly deviations of rainfall. Furthermore, high-income nations and the services and manufacturing sectors are most strongly hindered by both measures of daily rainfall, complementing previous work that emphasized the beneficial effects of additional total annual rainfall in low-income, agriculturally dependent economies4,7. By assessing the distribution of rainfall at multiple timescales and the effects on different sectors, we uncover channels through which climatic conditions can affect the economy. These results suggest that anthropogenic intensification of daily rainfall extremes8,9,10 will have negative global economic consequences that require further assessment by those who wish to evaluate the costs of anthropogenic climate change.
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Data availability
The data on economic production and the ERA-5 climate data are both publicly available at https://doi.org/10.5281/zenodo.4681306 and https://www.ecmwf.int/en/forecasts/datasets/reanalysis-datasets/era5, respectively. Secondary data are available at the public repository for this publication: https://doi.org/10.5281/zenodo.5657457. The maps were created using Matplotlib v. 3.4.2 (https://matplotlib.org/), Cartopy v.0.18.0 (Met Office UK, https://pypi.python.org/pypi/Cartopy/0.18.0), Geopandas v. 0.6.1 (https://geopandas.org/) and GADM administrative boundaries (https://gadm.org/). Source data are provided with this paper.
Code availability
The code to reproduce the analysis is available at the public repository for this publication: https://doi.org/10.5281/zenodo.5657457.
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Acknowledgements
We acknowledge funding from the Volkswagen Foundation and from the Horizon 2020 Framework Programme of the European Union (grant agreement number 820712). We thank M. Kalkuhl and S. Lange for discussions regarding economic and climate data, respectively.
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M.K. designed and conducted the analysis and contributed to the interpretation and presentation of the results. L.W. proposed the study, contributed to the design of the analysis and to the interpretation and presentation of the results. A.L. contributed to the interpretation and presentation of the results.
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Nature thanks Xin-Zhong Liang, Chad W. Thackeray and the other, anonymous, reviewer(s) for their contribution to the peer review of this work. Peer reviewer reports are available.
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Extended data figures and tables
Extended Data Fig. 1 Historical means of the four principal rainfall measures.
Maps of the historical (1979–2019) means of each annual rainfall measure. a, The annual total rainfall. b, The monthly rainfall deviations (a weighted annual sum of anomalies of monthly rainfall from their climatological means which are, by definition, zero mean). c, The number of wet days. d, The extreme daily rainfall measure (the annual sum of rainfall on days exceeding the 99.9th percentile of the historical distribution).
Extended Data Fig. 2 Historical variability of the four principal rainfall measures.
Historical variability (the standard deviation of annual values over the years 1979–2019) for each measure of rainfall.
Extended Data Fig. 3 Rich and poor differentiated response of economic growth to changes in rainfall.
As Fig. 2 but having estimated economic responses to rainfall for rich and poor countries separately.
Extended Data Fig. 4 Response of sectoral growth to changes in rainfall.
As Fig. 2 but having estimated economic responses to rainfall for the agricultural (“ag”), manufacturing (“man”) and services (“serv”) sectors separately.
Supplementary information
Supplementary Information
This Supplementary Information contains: Supplementary Sections 1–3, Figs. 1–6, Tables 1–17 and additional references.
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Kotz, M., Levermann, A. & Wenz, L. The effect of rainfall changes on economic production. Nature 601, 223–227 (2022). https://doi.org/10.1038/s41586-021-04283-8
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DOI: https://doi.org/10.1038/s41586-021-04283-8
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