Waste of atoms

You can see our oceans from space, since our world is 70% water. But we know more of space than we do about our own oceans. That’s the issue, we haven’t learned to use all of our resources. Why is it that the ocean is only seen as a place for gills? Sooner or later, the earth will just be place of human waste and that’s why we’re trying to find other planets but what’s the point if we’re just going to make that planet human waste too. Our oceans can help us in more ways besides provide seafood. Like the ocean can’t just be a waste of salty atoms.