In next month's edition, which you can now see by following the link above, The Atlantic posts some clever proposals to fix the world. Among them, try Gregg Easterbrook's article "Privatize the Seas," which, while not a sexy topic, is important if a) you want your kids first "pet" to be fish; or b) you just like to eat them.
As a primer, here is a Times article from earlier this year that explains the problem and potential solutions.
Fish Shares and Sharing Fish, http://judson.blogs.nytimes.com/2009/02/03/guest-column-fish-shares-and-sharing-fish/?scp=3&sq=privatize the ocean fish&st=cse . Thoughts?