Gotta admit, that statement was considerably tongue-in-cheek. In the end, humans will have an impact, period. So will horses, wolves, deer, trees, fire, and everything else. Our impact seems to be disproportionate in relation to most other life forms, there isn't any real reason to worry excessively - all I can do is try to live responsibly and not muck it up too badly. I can't do anything about the places that are drilled or given over to factories, or cities, or highways - that impact price has been paid. So, all that is left is trying to limit my impact and act responsibly when I'm in the backcountry - and plant 14 trees in my third-acre "homestead."

All in all, I'm pretty worry-free.