[About reading Rachel Carson's Silent Spring, age 14, in the back seat of his parents' sedan. I almost threw up. I got physically ill when I learned that ospreys and peregrine falcons weren't raising chicks because of what people were spraying on bugs at their farms and lawns. This was the first time I learned that humans could impact the environment with chemicals. [That a corporation would create a product that didn't operate as advertised] was shocking in a way we weren't inured to.

Planet Earth is our shared island, let us join forces to protect it

In this sequestered nook how sweet To sit upon my orchard seat And birds and flowers once more to greet. . . .

Do you know how much land is under ice, rock and snow? Do you know why 90 percent of us live within 100 kilometres of the U.S. border? We have this idea we're a vast country. But the reality is that a lot of it, a huge amount, is uninhabitable.

Those trees are your lungs. The earth recycles as your body. The rivers recycle as your circulation. The air is your breath. So what do we call the environment?

I have lived long enough to witness the vanishing of wild mammals, butterflies, mayflies, songbirds and fish that I once feared my grandchildren would not experience: it has all happened faster than even the pessimists predicted.