and a at the same tim, you can say y we've exploreded t 5% of the oceans. we have better maps of the surface of mars than we have of under our own oceans on our own planet. there's something wrong there. right? our fundamental understanding of our relationshihip to the ocean has too change in, i would s sa, the next few decades, or we really--we are really putting our o own survival at risk. >> there's life on thiis planet because of the oceans. life started in the oceans. it continues to govern things, everything from the climate to global food supply, right.. and yet this sort of watery deep, , as it werere, is still basically unknowown to us peopl. >> not only do almost 3 billion people make their living with work associated with the oceans, but it's a major source of protein in the human diet. 70% of the oxygen we breathe comes from the oceans. we need the oceans, the oceans don't need us. that'ss the fundamental disconnect. the biggegest silent threreat to the o oceans from humumans is on acidificatioion. it's happening. it's happening 1 10 to 100 t ti