Audrey writes in the comments of my vegetarianism post:
Comepelling [sic] piece, but the main reasons behind my veganism are rooted in environmental reasons, not animal rights. I think it's a bigger issue than people realize, or are exposed too.It's a fair point, Audrey, and one I'll happily address.
So what are the environmental reasons that might motivate vegetarianism? Consider an example of the economic scenario known as 'tragedy of the commons':
You're pounding brewskis and playing video games, two things bros are fucking awesome at. Your bro gets back to the Bro-cave, decides he wants to join you because he can, and grabs a beer from the fridge himself. Soon there are four of you, drinking and playing Mario Kart, when suddenly you run out of cold beer. Nothing but warmies in the fridge. Fuck that.What precipitated this crisis of epic broportions? If you had just gone slower, the beer in the fridge would have had time to cool down, and you wouldn't be out. But bros don't like to go slow - as rational actors, they want to maximize their utility, and in this scenario that means drinking as many of the cold beers as possible. If everyone had slowed down, everyone would have had more cold ones, but slowing down unilaterally isn't in any one individual's best interest. So you overexploited your resource, and now everybody loses.