If we want to move towards a low-polluting, sustainable society, we need to get consumers to think about their purchases.

The damage that climate change is causing and that will get worse if we fail to act goes beyond the hundreds of thousands of lives, homes and businesses lost, ecosystems destroyed, species driven to extinction, infrastructure smashed and people inconvenienced.

Thanks to evolution, our bodies have powerful ways to ward off illness and infection and enable us to live long and healthy lives. Why, then, do health costs continue to climb at unsustainable and frightening rates?

We have become a force of nature Not long ago, hurricanes, tornadoes, floods, drought, forest fires, even earthquakes and volcanic explosions were accepted as “natural disasters or “acts of God.” But now, we have joined God, powerful enough to influence these events.

Come on Canada, it's time to kick our bad habits and get into shape!

We no longer see the world as a single entity. We've moved to cities and we think the economy is what gives us our life, that if the economy is strong we can afford garbage collection and sewage disposal and fresh food and water and electricity. We go through life thinking that money is the key to having whatever we want, without regard to what it does to the rest of the world.

And that, quite simply, is the issue. We live in a finite world with finite resources. Although it may sometimes seem quite big, earth is really very small - a tiny blue and green oasis of life in a cold universe.