In Idaho, production agriculture is a $2.8 billion annual industry, 60% of which comes from crops. Almost 70% of the farmed acres are irrigated. The major crops in the state are wheat, hay, barley, and potatoes. Climate change could increase wheat yields by 9-18%. Barley and hay could increase by 12%, and potato yields could fall by 18% under severe conditions where temperatures rise beyond the tolerance levels of the crop. Farmed acres could rise or fall by 10%, depending on how climate changes.