If we have any hope of finding ways for seven billion people to live well on planet with finite resources, we have to learn to use our resources efficiently. Plastic bags are neither efficient nor environmentally friendly.

Outright bans on plastic bags may not be the best solution, but education and incentives to get people to stop using them are necessary.

The human brain now holds the key to our future. We have to recall the image of the planet from outer space: a single entity in which air, water, and continents are interconnected. That is our home.

Conventional economics is a form of brain damage. Economics is so fundamentally disconnected from the real world, it is destructive.

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

One of the joys of being a grandparent is getting to see the world again through the eyes of a child.

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