While American farmers are still suffering from recent severe flooding, historically our “corn belt” has done a remarkable job increasing food production. The main reason is of course the advances of farming chemistry, genetics, and technology, but throughout the 20th century the U.S. corn belt went farther and faster than other regions of the world (even other regions of the USA).
New research from Partridge et al. might explain why. Climate change has been raising temperatures around the world and across the USA, but while other areas had to contend with the bulk of it, during the growing season our corn belt has heated up much less than most places, while precipitation increased slightly. In other words, we got lucky.