Anna, you've turned into a tree. Or is that just your willowy figure I see?
Actually immigration doesn't have much to do with world population growth so far as Canada is concerned. Canada accepting immigrants will not spur other parts of the world to have more people, but it will keep Canada from facing a serious population decline in the future. Several nations are faced with this problem and many of them are dealing with it through immigration. There is no reason why Canada cannot do the same, especially as the country is far from overpopulated.