A global shortage of wheat is expected due to adverse weather conditions and Russia's invasion of Ukraine, which have significantly reduced milling wheat by 30-40%. The weather conditions have made a large portion of the wheat grow unusable, and the conflict has halted exports from two of the largest wheat producers, exacerbating the shortage. United Wheat Growers NZ chair Brian Leadley is advocating for more focus on growing wheat locally to make New Zealand more self-sufficient and prevent shortages. However, the weather conditions are not under farmers' control.