There is considerable uncertainty about the extent to which climate change may impact crop yields in Canada. Projecting future land suitability under climate change is crucial for assessing future food security. We predict that by the year 2050 the expected net losses in canola and spring wheat production will far outweigh the gains from barley and oats. We propose mitigating these losses through data-driven preemptive breeding of climate change resilient cultivars. These findings support the development of sustainable agricultural management practices to maintain future food security and economic stability both within Canada and across the globe.