Uploaded April 2022 | Updated September 2026, 2 weeks ago

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Writing by Sam Denby and Tristan Purdy
Editing by Alexander Williard
Animation led by Josh Sherrington
Sound by Graham Haerther
Thumbnail by Simon Buckmaster

References
[1] bancroftiowa.com/index.asp?SEC=63D4BC80-6900-4A7F-A5C0-92A39E566074
[2] nass.usda.gov/Quick_Stats/Ag_Overview/stateOverview.php?state=IOWA
[3] https://www.agry.purdue.edu/ext/corn/news/timeless/YieldTrends.html
[4] krugerseed.com/en-us/products/corn.html#view=national&zipcode=50511
[5] federalhybrids.com/products/corn
[6] http://www.croptesting.iastate.edu/Corn/Docs/2021_ISU_corn_final_report.pdf
[7] macrotrends.net/2532/corn-prices-historical-chart-data
[8] https://www.extension.iastate.edu/agdm/crops/pdf/a1-20.pdf
[9] https://crops.extension.iastate.edu/blog/aaron-saeugling-kristina-tebockhorst-mark-hanna-ryan-w-bergman-shawn-shouse/combine-adjustments
[10] s3.amazonaws.com/media.agricharts.com/sites/211/SLC%20Grain%20Policies%209-12-21.pdf

Select footage courtesy Getty and AP; Select imagery courtesy Geolayers; Select music courtesy Epidemic sound