Common sense forces me to consider first the incredible sweep of time that preceded this moment and the ocean's great age, relative to the infinitesi… - Sylvia A. Earle

Far and away the greatest threat to the sea and to the future of mankind is ignorance. But with knowing comes caring, and with caring, the hope that maybe we'll find the Holy Grail of understanding, strike a balance with the natural systems that sustain us, and thus achieve an enduring place for humankind on a planet that got along without us for billions of years and no doubt could do so again.

(My parents and grandparents) witnessed the start of an era of unprecedented global consumption of living resources, the transformation of an earthly paradise 4.6 billion years in the making skimmed for the short-term service of a single insatiable species.

This is a time of pivotal, magnified significance for humankind. The fabric of life and the physical and chemical nature of the planet have been significantly altered through decisions already made by our predecessors and those now living; what happens next depends on what we do, or do not do, individually and collectively, in the next few decades. Depending on choices we make, our species may be able to achieve a viable, sustainable future, or we may continue to so alter the nature of the planet that our kind will perish.