The evidence tells us that with the change in climate moving to the north—and we're a northern country—we're seeing a potential change over the next 10 years, such that 10% of the north that currently can't be farmed will be be farmable. That will be 80% by the end of the century. Diseases that we used to only see in Florida, for example, are moving steadily north.
I don't know if you noticed the recent report about the emergence of black widow spiders in southwestern Ontario, and the movement of Lyme disease north. We have to think about people who live in the Far North who have never had those kinds of diseases before and who will now be exposed to communicable diseases. We didn't have to think about this in the past, so it has impacts on health care, vaccine programs and so on. We see the two as being very much tied.