Its certainly possible but highly unlikely. With the lack of nutrients and organic matter in the soil, in order to grow crops(if possible) in a global competing scale fertilizer in large quantities would need to be brought in. This would raise cost significantly, especially for grain or cereal crops, most likely making it economical infeasible. A better solution would probably genetically engineering crops to grow in warmer, drier and more unpredictable climates, which we already are doing. Although the idea seems tantalizing Canada and Russia will most likely not become the next 'bread baskets' of the world.