But the point is that it IS a nightmare scenario, since the situation is virtually unrecoverable. Ask any marine biologist about the chances of restoring any ecosystem of such dynamics past a point of no return (I work with them, so I HAVE asked).

Again, you're making a huge fuss out of something that is a technicality, because it IS a nightmare scenario, it IS coming, and for us as humen beings it's as disastrous as claimed.