I don't know a lot about veganism. Are you familiar with this style of dieting?
Yes! I flirted with it a bit. Basically it's about abstaining from ALL animal products in the diet -- both for health and ethical reasons.
Did you join this style of eating for diet or for ethical reasons?
Partially -- but honestly, I'm torn. I know some very ethical carnivores! I probably aligned more with "environmental veganism".
What exactly is environmental veganism? I'm not familiar with this term.
Basically it's about avoiding animal products because the harvesting or industrial farming of animals is harmful to the environment and unsustainable.
This is a philosophy that I could subscribe to but I don't believe I could ever give up eating meat. 
Well, I'm there with you! I do try to take into account animal welfare scores when buying meat, though. It's not animal conservation, but is an awareness.