Can't Beat 'Em? Eat 'Em.
Worldwide, the appetite for meat is steadily growing. But it's increasingly clear that global meat consumption is causing huge environmental problems, and today's livestock industry may be unsustainable. In the future, we may need to direct our appetites at animals that can be farmed and harvested without profound environmental damage.
In fact, if we pick our proteins carefully--by eating, say, invasive animal species--our carnivory might even be good for the planet. Here is a guide to some of the vermin, unwanted immigrants, and other creatures you can find on the other end of a more environmentally enlightened fork.