Guardian: We’ve been told about the environmental costs of motoring, industrial farming, long-haul flights, big oil, deforestation in the Amazon and buying sweat-shop produced, throwaway fashion. Some of us have taken this advice on board, cycling more, flying less, choosing renewable energy schemes, and seeking out ethical, organic products. We can make these choices because appliances and cars are rated according to their energy consumption, and Fairtrade or organic products have prominently …