Without an ocean, there would be no life-no people anyway - Sylvia A. Earle

Part of human impact on the earth relates to our swiftly growing numbers. If we do not take deliberate, conscious action to maintain a reasonable balance between the numbers of people and the environmental wealth required to sustain us, nature will make appropriate adjustments, and famine, disease, and wars-the predictable outcomes of living beyond one's environmental means, of overspending environmental capital-will ultimately force a cruel discipline.

“Green" issues make headlines these days, but many seem unaware that without the "blue" there could be no green, no life on Earth and therefore none of the other things that humans value. Water-the blue-is the key to life. With it, anything is possible; without it, life does not exist.

Diving into the ocean, it’s like diving into the history of life on earth, not just over the last 50 or 1,000, but the last million, 10 million, 100 million years, because creatures are there that have been there for several hundred million years, not those same creatures, but their near relatives, like jellyfish; like — well, sharks have been around for 300 million years; horseshoe crabs, creatures that lured me into the ocean as a child in New Jersey, have a history that goes back at least 300 million years; so many forms of life that were found in the ocean long before there were multicellular creatures occupying space on the land.