Matt, he's not saying you can't have a large house... He's asking that you do what you can.
For instance, Gore will put in large solar panels and give energy back to the power grid... He's not saying turn your life upside down, he's saying that there are things you can do to reduce and he believes that's the right direction... So you can't say he doesn't care about his own carbon footprint... clearly you are lying about that.
You guys who want to hate stuff like that are far too angry over nothing...
I like cars, love them, so I buy cars I like and I don't drive a smart car or a Prius or anything, but so what... I turn my light off when I'm not in a room and I do other things to reduce my power usage... My life isn't upside down to reduce my carbon footprint.
Much ado about nothing.