The largest ecosystem on the planet: Ocean Dome. Covers about 71% of the Earth. It was divided by geographers into several oceans and several seas. The main component of Earth’s hydrosphere. Is a key factor in the carbon cycle and oxygen, without which there would be no life as we know. Decisive influence climate and human activities. It is huge, almost unimaginable, with its volume of about 1, three billion cubic kilometers. The house, ideal habitat for about 230,000 species of living creatures and many others discovered that science has not yet got to know. With these data, we can not ask questions about its future, the future Ocean, in the context of exploitation, pollution and all the pressures of humanity against him.