The right to have our environment protected for the benefit of present and future generations is our most important human right.

When I'm preparing for a swim, I imagine absolutely everything about it: the color of the water, how cold it is, the taste of salt in my mouth. I visualize each and every stroke.

If we pass on an unsustainable environment to our children we have failed them.

The blues is also existential and offers a sense of mature reflection that enabled it to be the leitmotif of modern life.

If you want to swim across the English Channel from England to France - you have to leave your doubt on the beach in England.

I think that I was slightly naive. I thought that if I showed people the beauty of the Arctic and the beauty of the polar bears that they would care so much that they would stand up and try to make a change.

When I was born, the world's population was 3.5 billion. There are now 6.8 billion people on the planet. By 2050, that's expected to rise to 9.4 billion. What's more, the Earth's resources aren't growing; they're decreasing - and rapidly.