I believe it will be a very difficult world.
It's perhaps evident from what has been happening in some of our cities. I live in Toronto. The heat waves we've been experiencing over the last number of years are becoming killer heat waves. We've had to institute heat alerts—something we never would have thought of years ago—not just for people who are homeless, but for seniors in their little rooms who can't afford an air conditioner. We're facing the consequences of the temperature change that also produces accelerated smog, so there are more diseases that people are going to experience.
Mostly, though, I worry about when the big changes start to happen: when the sea level really does start to rise. I know some of you may have looked at the computer projections. There are some Canadian scientists who have the best acknowledged projections in the world.
In a way, of course, the sea is the last part of the earth to warm. The sea is three kilometres deep, on average, and covers 77% of the planet's surface. Once it starts to heat up there are going to be very big changes, not the least of which is the increasing level of the sea. It won't be a few inches or a few centimetres; it's going to be quite a bit more significant. That's going to mean that a lot of people around the world--including many Canadians who are on the shoreline--in those low-lying deltas of the great rivers of the world, where the civilizations have assembled, are going to experience a dramatically reduced capacity to produce food as those sea levels rise. Those people are going to look at the way others are living around the world and they're going to start asking some pretty serious questions.
I represent a community that has a lot of the Bengalis who have come to Canada. About 40,000 Bengalis live right near my riding. They've just had one of the most devastating cyclones ever, and most of their country is in one of those low-lying areas.
If we get beyond the tipping point with some of the predictions that are out there, these are the kinds of countries that will simply not be livable anymore. And where are those people going to go? They're going to ask questions, and we could be in line for some very serious social and political instability, the likes of which we really haven't seen before.
On the other hand, I believe that if we take dramatic and strong action—it has to be dramatic and it has to be strong—we can avoid much or maybe all of this. This is what we have an obligation to do, especially those of us who are in the richest, most successful country in the world.