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?

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

How you imagine the world determines how you live in it.

Despite the international scientific community's consensus on climate change, a small number of critics continue to deny that climate change exists or that humans are causing it. Widely known as climate change "skeptics" or "deniers," these individuals are generally not climate scientists and do not debate the science with the climate scientists.

But human borders mean nothing to air, water, windblown soil or seeds or migrating fish, birds or mammals.

Japanese people cut their energy use by 25 percent immediately after Fukushima. They showed there was huge opportunity there. And instead, the government simply wants to get those plants up and running again.

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