What is the significance of the ocean to mankind?

I hope you can be satisfied with my answer ~

The ocean regulates the weather and climate, keeps the temperature stable, moistens the atmosphere, and replenishes water for rivers and lakes. Because of the existence of the ocean, human beings can breathe, because the ocean can absorb carbon dioxide and make oxygen. Rainforests are as important as other terrestrial ecosystems, but without oceans, there would be no life on land. About 97% of the earth's space called biosphere is made up of oceans. It is no coincidence that 97% of water, the source of life on earth, is also contained in the blue ocean. Nearly two-thirds of the remaining less than 3% fresh water is frozen in the ice of Antarctica and Greenland. 80% of the creatures on the earth live in the ocean, and seafood currently provides 22% of protein consumption for human beings.

So human beings can't live without the ocean.