Union of Concerned Scientists

The tactical link between ExxonMobil's funded denial of climate change and the tobacco industry's organized denial of the health risks of its product have been documented in these pages before.

But this new paper (pdf.) by the Union of Concerned Scientist brings such discipline and rigor to this argument that its conclusions are undeniable: Exxon is spending a fortune to prop up a convenient lie; and it's using the same tactics and many of the same people that the tobacco industry used.

This paper should be required reading for every policy maker.

Update: here's what Exxon has to say.

Update: here's what the CEI has to say.