Anyway, it's clear that something has to be done. While pollution is a major threat to the survival of the planet, I wonder if focusing on CO 2 isn't merely a distraction from the much more serious toxins which are being dumped on the planet. Society needs to change direction politically, socially, economically. Under the current system, a sustainable future is practically impossible. As for global warming, it's happened before.
People move around a lot today.
They could move inland over the course of decades. Small ocean life with short life spans can evolve fast enough to adapt to changes in the balance of the natural components of the ecosystem, such as mineral concentration in the ocean. It's the unnatural human-produced toxins, including Page 2 May 1999 nuclear toxins, which are the more serious threat. Toxins are dumped on Indian reservations, in minority neighborhoods, in the Third World. On that path, eventually it will hit the upper classes as well.