Yes, you're absolutely correct. Canada should be a net nitrogen exporter, yet we're a net nitrogen importer, particularly in eastern Canada. Obviously now we're starting to use Saskatchewan potash because we're the world's largest exporter of potash, yet historically that's come from overseas because of our lack of east-west transportation infrastructure.
What I want to particularly focus on is phosphorus. Going ahead, in terms of input security, the world's phosphorus sources—Florida, Morocco, Jordan and Saudi Arabia—are not, particularly now, the most stable places for that to come from. What would be your comments, particularly on phosphorus?