"We can think of Gliese 581g as our special nest egg, our survival back-up plan. Once we ruin this planet (and rest assured, that’s as good as done), we now have a destination in mind. This is about as likely as you saying, “Once I’ve totally trashed my mom’s basement, I’ll move into Buckingham Palace,” but dreams are important." -Toronto Star,
http://www.thestar.com/news/world/article/868428--the-new-earth-why-you-will-never-live-there?bn=1