Washington Post: I’ve been trying pretty hard to wrap my head around the politics of the climate change debate. No one, for instance, seems to think Waxman-Markey is, at this point, a particularly good bill, even as everyone agrees it’s the best we’re likely to get. No one has a particularly strong explanation of how it gets better as it winds its way through the legislative process. No one has a particularly compelling theory on how it gets strengthened over time. And even though Obama made the bill part of …