Education has failed in a very serious way to convey the most important lesson science can teach: skepticism.

We can no longer tolerate what's going on in Ottawa and Edmonton. What I would challenge you to do is to put a lot of effort into trying to see whether there's a legal way of throwing our so-called leaders into jail because what they're doing is a criminal act.

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

Unless we are willing to encourage our children to reconnect with and appreciate the natural world, we can't expect them to help protect and care for it.

Rapid population growth and technological innovation, combined with our lack of understanding about how the natural systems of which we are a part work, have created a mess.

Because countries often have differing political and economic systems, agreements are needed to protect those invested in trade.

A book is like a single tree in a forest, in that it exists in conjunction with and because of a great many others around it.