Ice ages have come and gone. Coral reefs have persisted.

What we once used as weapons of war, we now use as weapons against fish.

If Darwin could get into a submarine and see what I've seen, thousand of feet beneath the ocean, I am just confident that he would be inspired to sit down and start writing all over again.

It doesn't matter where on Earth you live, everyone is utterly dependent on the existence of that lovely, living saltwater soup. There's plenty of water in the universe without life, but nowhere is there life without water.

There is this sweet spot in time when we have an opportunity to stop killing sharks and tunas and swordfish and other wildlife in the sea before it's too late.

I find the lure of the unknown irresistible.

'Green' issues at last are attracting serious attention, owing to critically important links between the environment and the economy, health, and our security.