TeleSUR (2022-08-23). Global Warming May Cause Greater Wheat Yields, Price Spikes. telesurenglish.net What will a hotter Earth bring to wheat consumers and farmers? A new study predicts that global prices for the grain will exhibit steeper spikes at 2 degrees Celsius warming despite a slight increase in production. | Aerial photo taken on July 7, 2022 shows a combine harvester reaping wheat in a field in Qitai County, Changji Hui Autonomous Prefecture, northwest China's Xinjiang Uygur Autonomous Region.