I love music of all kinds, but there's no greater music than the sound of my grandchildren laughing; my kids, too.

Burning fossil fuels has given us the gift of seeing ourselves in new ways. But that very gift now enables us to see we've got to change our ways.

Ignorance is the biggest problem of all for the ocean - and for many other things as well.

Photosynthetic organisms in the sea yield most of the oxygen in the atmosphere, take up and store vast amounts of carbon dioxide, shape planetary chemistry, and hold the planet steady.

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.

We have an atmosphere that is roughly 21% oxygen. The rest of it is largely nitrogen. There's just enough carbon dioxide (CO2) to drive photosynthesis. That has been, throughout the history of our species, pretty stable. Until recently.

We need to respect the oceans and take care of them as if our lives depended on it. Because they do.