Today, in my inbox, was a letter from Whiskas parent group, Mars, gleefully telling us Greenpeace folk how committed they were to sustainability, saving the oceans, and other such buzzwords. The tone of the letter suggests a smug grin that would make the Cheshire Cat jealous. It goes on to tell us how they are, like, so committed, that they will be working with the Marine Stewardship Council and by the end of 2010 the MSC logo will be adorning fishy-flavoured packs of Whiskas and Sheba catfood.