Everyone has power. But it doesn't help if you don't use it.

The oxygen cycle, the nitrogen cycle, the carbon cycle, the water cycle - all of these are linked to the existence of life in the sea.

This much is certain: We have the power to damage the sea, but no sure way to heal the harm.

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

Our job is to keep what is working intact and not destroy what we have got.

It's taken us a short time to change the nature of nature. In my lifetime, more change than during all preceding human history put together.

When I arrived on the planet, there were only two billion. Wildlife was more abundant, we were less so; now the situation is reversed.