I’ve had the privilege of living underwater on 10 different occasions. It has enabled me to get to know individual moray eels, individual groupers, e… - Sylvia A. Earle

Perversely, the natural living systems that over billions of years have generated and shaped planetary chemistry in ways that make Earth hospitable for humankind are being destroyed at breathtaking speed. This, too, we now know. Now that I know, I hope to convey a sense of urgency to others, to inspire use of the special powers that humans possess to take actions to protect what remains and restore whatever we can of the natural living systems that give us life, and provide the underpinnings of all we hold near and dear.

We have an opportunity, now, to achieve for humankind a prosperous, enduring future. If we fail, through inability to resolve thorny issues, or by default born of indifference, greed, or lack of knowledge, our kind might well be a passing short-term phenomenon, a mere three or four million-year blip in the ancient and ongoing saga of life on Earth.

Our soaring population may suggest success as a species, but the environmental price of modern civilization is high, and our prosperity may be short-lived.