Greg Mankiw's Blog: Alternatives to the Pigou Club is a serious dialog around a recent WSJ article he wrote. I suspect the WSJ article drove the WSP editorial page into a blinding rage, note how Mankiw doesn't even bother to address whatever blather they produced. Instead he lays out all the alternatives and does a persuasive job of ruling them out.
We need a big carbon tax.
Note Mankiw is a Libertarian by leaning.
Read the comments too.