Two articles on the same day point out the complexities of talking about pollution in the oceans. First, based on one good summer for tourism in the Gulf, BP argues in court that the harm caused by its oil gusher is over and no more compensation should be paid. See http://nyti.ms/nqafKR In other news today, scientists warn that pollution, climate change, and other factors are causing irreversible and potentially catastrophic changes in the world's oceans. See http://nyti.ms/n3mxh8 http://amplify.com/u/a17yuj