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

Give the ocean a break. Give yourself a break.

I'm not against extracting a modest amount of wildlife out of the ocean for human consumption, but I am really concerned about the large-scale industrial fishing that engages in destructive practices like trawling and longlining.

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.

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.

The ocean governs the climate and the weather, it is taking care of the temperature and it is shaping the chemistry of our planet.

The Earth is a tiny blue speck in a universe of unfriendly options.