Everyone swears the IPCC have proof, but still nothing from the AR5

The IPCC don’t have no evidence!

(All right, all right! Leave off with the double negative put-downs already!)

common arguments • interesting rebuttals • startling absence of proof


Looking at the recent geological (let’s say prehistoric) record then the exogenous inputs (mainly from volcanism) seem to have been low relative to historic exogenous inputs (mainly from agricultural soil organic matter breakdown and fossil fuel burning), which means that the two eras are not comparable and so conclusions drawn from one cannot be applied to the other.

Yet the IPCC does exactly that. They rip an isolated fact from its primeval context and claim it applies today. But it flies in the face of copious evidence and asserts that the global mean surface temperature (GMST) is determined by only a single factor: the trace gas carbon dioxide. For instance, on p. 50, the AR5 Technical Summary harks back 52 million years to inform us: Continue Reading →