The climate has been changing. Of course it [has]. Evidence throughout history, [which] we can assess, especially during human history, shows there have been ups and downs. But the last ten thousand years have been relatively stable compared to now.

If the sea is sick, we'll feel it. If it dies, we die. Our future and the state of the oceans are one.

In terms of personal choices, let's all think more carefully about where we get our protein from.

We don't have to be that greedy generation that just continued to take down the underpinnings of what makes the planet work in our favor.

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.

Never before have we known what we know.

We have the capacity to alter the nature of nature. No, we don't have just the capacity - we are altering the nature of nature, the natural systems that cause the planet to function in our favor.