I actually love diving at night; you see a lot of fish then that you don't see in the daytime.

That attitude of arrogance, that attitude of "It's all about me. It's all about what I can get out of life now" - well, I'm personally driven by wanting to get out of my life the best I can achieve as a gift for those who come after me.

Since I began exploring the ocean in the 1950s, 90 percent of the big fish have been stripped away. Tuna, sharks, swordfish, cod, halibut, you name it, the numbers have just collapsed. Also, about half of the coral reefs are gone, globally, from where they were just a few decades ago.

The most important thing for people to know about the governance of the Arctic is that we have a chance now to act to maintain the integrity of the system or to lose it. To lose it means that we will dismember the vital systems that make the Arctic work. It's not just a cost to the people who live there. It's a cost to all people everywhere.

The most important part is to take on the challenge of protecting the ocean as if your life depends on it - because it does.

We are taking way more out of the ocean than the ocean can replenish.

I suggest to everyone: Look in the mirror. Ask yourself: Who are you? What are your talents? Use them, and do what you love.