We have found ways to capture, kill and market ocean wildlife on an unprecedented scale. It's an absolute catastrophe.

Our insatiable appetite for fossil fuels and the corporate mandate to maximize shareholder value encourages drilling without taking into account the costs to the ocean, even without major spills.

I find the lure of the unknown irresistible.

I've had the joy of spending thousands of hours under the sea. I wish I could take people along to see what I see, and to know what I know.

Fortunately, we know more about the problems that we have than in all preceding history. We know now the consequences of the things that we put into the air, into the water - of the way we treat life on Earth.

There's a vested interest in trying to keep people smoking cigarettes.

With knowing comes caring.