Dr Peter Gleick writes in the San Francisco Chronicle:

Here is the best argument against global warming:

. . . .

Oh, right. There isn’t one.

There is no good argument against global warming. In all the brouhaha about tiny errors recently found in the massive IPCC report, the posturing by global climate deniers, including some elected officials, leaked emails, and media reports, here is one fact that seems to have been overlooked:

Those who deny that humans are causing unprecedented climate change have never, ever produced an alternative scientific argument that comes close to explaining the evidence we see around the world that the climate is changing. [read more]

Hat-tip to Joe Romm at ClimateProgress.