Are my cat and I using more than our fair share of ocean resources?

It's a good question: our pets eat 2.48m tonnes of fish a year

Thanks to a decade of "consumer-facing" campaigns i la Hugh Fearnley-Whittingstall's Fish Fight we know how to seek out (MSC) blue ticks at the supermarket. We're tentatively trying pollock to take the pressure off depleted stocks. But you've identified a real problem. We're not so great at pet food, where globally 2.48m tonnes of "forage fish", around a 10th of the global catch, ends up. That's fish like herring, sardines and anchovies shovelled into the bellies of the world's moggies. Talk about fat cats - even the global harp and grey seal population only gets through 1.7m tonnes. The average Stateside pet eats 13.6kg of fish a year - double that consumed by the average American human.