It doesnt surprise me. The thing is he probably greens out his massive estates and what not as best he can, but he still uses a bajillion times more resources than the average american home that isnt green in the least bit.
Problem is most of the people you will see talking about this shit on a public forum ARE rich. As such are for more likely to be hurting the environment more than anyone else. Which is why I dont get when they say "we need to live with less" well I have less than him, so im doing my part.