Originally Posted by CorpusCallosum

Those beers you enjoy so much are made from hops and barley. Both of which crops are grown and harvested in big paddocks cleared and ploughed by enormous tractors belching black diesel smoke. The beer is made in breweries powered by coal-fired power stations and delivered by trucks to your nearest grog shop. Even the aluminium in the can is smelted using vast amounts of electricity, and that's before we even get to the environmental pillaging that goes with a bauxite mine.

A steak, is it, sir? Then spare a thought for all those methane-emitting cows standing around in paddocks that were clear-felled from bush.
Oh, and don't forget the stench of the abattoir or the hum of the electric motors running the refrigeration plants at the ports of call between the boning room and the butcher's shop.