I've been vegan for 15 years, and it turns out it makes a very big impact on the environment to eat fewer animal products, which cause more greenhouse gases than all of transportation combined.
I first became a vegetarian when I was nine, in response to an argument made by a radical babysitter. My great change - which lasted a couple of weeks - was based on the very simple instinct that it's wrong to kill animals for food.
I suppose and I hope that the young guys who are out there losing their lives at least feel the same way I did. I shouldn't think about this very much because I'm almost weeping when I think about it.

