Earlier quoted context omitted.
And yet, are you still eating meat? Fish? What are you doing for your part?
"What are you doing for your part" is equivalent to nothing, UNLESS you are perhaps paradoxically working in finance to become rich enough to have enough money and/or influence to someday have a real effect on these problems. Or maybe actively researching sustainable technologies, or part of a pro-environmental lobbyist group or something. Don't kid yourself: if you want to stand on a high horse understand that your…
To me, your argument is about the same as saying that it is okay to steal from Walmart. After all, what difference will it make to their bottom line? Essentially none. Does that make stealing (in small amounts) morally okay? (Maybe you see this as a completely different question, but from a Kantian ethics perspective, they're the same.)
[1] http://usatoday30.usatoday.com/news/nation/environment/2009-...