What would corn yields look like if there was a nuclear war?

Each year, farmers produce more than a billion metric tons of corn. As technology advances, researchers are looking at how that could change with nuclear contamination.

Researchers at Penn State University have studied how a nuclear war scenario would play out at nearly 40,000 locations around the world. Using their agro-ecosystem, they found that if five tons of soot were to drop, it would lower corn production by seven percent. On a larger scale, with 165 tons of soot, that number jumps to an 80 percent drop in corn yields.

Researchers say they hope this scenario never happens, but they warn it is always best to prepare for catastrophic events.

Related Stories
Stronger fuel demand supports corn usage despite a steady production pace.
Pre-filled Applications Available Online to Producers with a Login.gov Account
The USDA Agricultural Outlook Forum highlights modest price support from tighter supplies across cotton, grains, dairy, livestock, and sugar into 2026.
Biofuel and corn producers await proposal as Renewable Fuels Association pushes for expanded ethanol access.
Strong corn exports support prices while soybeans lag yearly pace. However, large carryover stocks limit upside despite solid yields.
Lawmakers request information from CEO Scott Stump over sponsorship concerns and potential implications for the organization’s nonprofit status.
Large carry-in stocks across major crops could limit price recovery in 2026/27 unless demand strengthens or weather-related supply reductions occur.
Ethanol output is improving, but weak domestic demand and export headwinds temper optimism about corn demand. Renewable Fuels Association President & CEO Geoff Cooper discusses the latest developments on Federal approval of year-round E15.
Corn demand remains supportive, but weaker soybean buying limits overall export momentum.

LATEST STORIES BY THIS AUTHOR:

A story that started with hardship ultimately led to a producer impacting the lives of youth involved in sheep showing. The North Carolina Farm Bureau takes us to Haynes Farm in Dobson, N.C., to hear this inspiring story.
A split-interest transaction involves one party acquiring a temporary interest in the asset (such as a term certain or life estate), with the other party acquiring a remainder interest. That is the topic of today’s Firm to Farm blog post by RFD-TV Agrilegal Expert Roger A. McEowen.
Show producer Donna Sanders shares her perspective on filming the latest episode of Where the Food Comes From at Splenda Stevia Farms, a company growing a sweet specialty crop here in the U.S. that is typically imported from overseas.
As I try to catch up on my writing after being on the road for a lengthy time, I have several recurring themes in my legal work. Another potpourri of random ag law and tax issues — that is the topic of today’s Firm to Farm blog post by RFD-TV Agrilegal Expert Roger McEowen.
Splenda’s new stevia farm in Florida is the first of its kind in the United States. Thousands of plants produce millions of leaves that are then turned into plant-based stevia sweetener products. But how do they get the sweet stuff out?
Agriculture Shows
Special 3-part series tells the story of the Claas family’s legacy, which changed agriculture forever.
From soil to harvest. Top Crop is an all-new series about four of the best farmers in the world—Dan Luepkes, of Oregan, Illinois; Cory Atley, of Cedarville, Ohio; Shelby Fite, of Jackson Center, Ohio; Russell Hedrick, of Hickory, North Carolina—reveals what it takes for them to make a profitable crop. It all starts with good soil, patience, and a strong planter setup.
Champions of Rural America is a half-hour dive into the legislative priorities for Rural America. Join us as we interview members of the Congressional Western Caucus to learn about efforts in Washington to preserve agriculture and tackles the most important topics in the ag industry on Champions of Rural America!
Featuring members of Congress, federal and state officials, ag and food leaders, farmers, and roundtable panelists for debates and discussions.