My first reaction to this house ad on the The Nation's website was "Gee, this is the kind of ad P.J. O'Rourke would joke about liberal magazine readers responding to." But no; it's real.
Yes, it's an Al Gore snowman melting under the heat of our fast-warming climate. $30 for a year isn't bad, though. And worth considering, once you've purchased an even more afforable subscription to Reason.