Table 1 Source of national and subnational crops statistics used in the analysis.

CountryCropAgencyWebsite
United StatesMaize, wheat, and
soybean
U.S. Department of Agriculturehttp://quickstats.nass.usda.gov/
ArgentinaMaize, wheat, and
soybean
Integrated Agricultural
Information System
www.siia.gov.ar/
BrazilMaize, wheat, and
soybean
Brazilian Companhia Nacional de
Abastecimento
www.conab.gov.br/index.php
CanadaWheatStatistics Canada,
CANSIM database
https://www150.statcan.gc.ca/t1/tbl1/en/cv.action?pid=3210035901#timeframe
IndiaMaize and wheatDirectorate of Economics and Statisticshttps://eands.dacnet.nic.in/
MexicoMaizeINEGI Information DatabankSee Other Supplementary Materials (advances.sciencemag.org/cgi/content/full/5/7/eaaw1976/DC1): maize_yield_anoms.csv
ChinaMaize, wheat, and
soybean
Ministry of Agriculturehttp://zzys.agri.gov.cn/nongqing.aspx
AustraliaWheatAustralian Bureau of Statisticswww.abs.gov.au/
Other
countries
Maize, wheat, and
soybean
FAOwww.fao.org/faostat/en/