Life in the ocean makes Earth hospitable. We are sailing along in the universe and we have a blue engine that is making everything alright.

When I write a scientific treatise, I might reach 100 people. When the 'National Geographic' covers a project, it communicates about plants and fish and underwater technology to more than 10 million people.

Any astronaut can tell you you've got to do everything you can to learn about your life support system and then do everything you can to take care of it.

I have lots of heroes: anyone and everyone who does whatever they can to leave the natural world better than they found it.

Only two percent of the ocean is fully protected right now.

I've always said, 'Underwater or on top, men and women are compatible.'

People ask: Why should I care about the ocean? Because the ocean is the cornerstone of earth's life support system, it shapes climate and weather. It holds most of life on earth. 97% of earth's water is there. It's the blue heart of the planet - we should take care of our heart. It's what makes life possible for us. We still have a really good chance to make things better than they are. They won't get better unless we take the action and inspire others to do the same thing. No one is without power. Everybody has the capacity to do something.