The ocean is the most important resource of our planet thanks to its multiple capacities. It is able to feed the entire planet with energy, thanks to its swell, its tides, its differences of temperatures and its marine currents. On all the coastlines, one can capture endless energy and use it for the common needs of humanity. … However, we are just beginning to explore these resources. We do not know enough about this underwater world. But beware, they should not be exploited in the same way as in the last century. We will have to find other economic paradigms.