Christopher Monckton, who last appeared at LGF in July 2008 when he claimed to have a peer reviewed paper showing that the Earth’s climate sensitivity had been vastly overstated (a claim that turned out to be false), has been caught out again, deliberately manipulating data to claim that IPCC projections of CO₂ emissions were wrong.

Turns out the projections weren’t wrong at all; Monckton fabricated graphs with false and cherry-picked data in order to make his claims. RealClimate has details on the fakery.