A new study published in Proceedings of the National Academy of Sciences of the United States of America finds that climate change will not only increase the risk of food shocks from world corn production but that these crop failures could occur simultaneously. “Increased warming leads to global crop failures because plants are not adapted to really high temperatures,” explains Michelle Tigchelaar, a research associate at the University of Washington. “Most of our crops are really well-adapted for our current climate. There is an optimum temperature at which they grow and beyond that their yields decline. Extreme heat has really negative impacts on … the flowering of crops and also increases their water usage.” OOPS. Anyone who’s grown corn knows it requires warm soil.