The Des Moines Register reports on Fourth National Climate Assessment warnings for Iowa, including possible yield losses of up to 25% for corn by mid-century. It also cites heat waves that could hurt pollination and wetter springs that shorten planting windows.
The projected long-run corn yield declines are a structural supply risk, but the timeline is too distant to move current feed grain prices.
After 770 past neutral report events, Corn moved a median +0.2% over 5 sessions (54% higher; middle half -1.1% to +1.6%), and +0.7% over 20.
After 563 past neutral report events, Soybeans moved a median -0.1% over 5 sessions (48% higher; middle half -1.7% to +1.6%), and -0.1% over 20.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.