National Geographic has run a good reality check interview with Scripps Institute oceanographer Dr. Jeremy Jackson. He says, "We will never be able to fish at the level we have been fishing." But goes on to point out that the damage is reversible - if we protect a large portion of our oceans.
Watch the clip here.
I really get the feeling that scientists have done their job on overfishing. They've identified the problem, and ways forward (including the ecosystem approach and marine reserves). But so far politicians and industry have mostly ignored them.