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

Only here in this part of the universe, on Earth, is there known to be a place naturally blessed with abundant, liquid water. Not only is this the singular place with an ocean of salt water, but even more significant, it is an ocean that is filled with life that in turn, during some four billion years, has shaped the basic rocks and water of the planet into a strikingly different kind of place, a place unlike any known to exist anywhere else.

“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.

The poet W. H. Auden said, "Thousands have lived without love; none without water." Ninety-seven percent of Earth's water is ocean. No blue, no green. If you think the ocean isn't important, imagine Earth without it. Mars comes to mind. No ocean, no life support system.