In a striking turn of events, the McCain campaign has produced a good ad for their candidate:

Of course the idea that if you're primarily concerned about climate change you ought to vote for John McCain is ludicrous on the merits. Not as ludicrous as the idea that McCain is the candidate of peace, but maybe someone should ask McCain how he plans to "curb" carbon emissions while opposing a "mandatory cap" on them. Or why a candidate eager to tackle climate change would vote against the Climate Security Act.