In a speech that cost $45 to attend, a man who identified himself as “S.K. Wolff,” a policy analyst at the NPC and a special adviser to Exxon Mobil, first caused ears to prick up by claiming that the U.S. would announce a fivefold increase in the amount of crude it receives from Canada’s oil sands in the next five years – a practical impossibility given current development limitations.Then, before the backdrop of an unprofessional-looking PowerPoint presentation, Mr. Wolff – in actuality Jacques Servin, one of the leaders of the Yes Men – said that Exxon Mobil had created a system known as “Vivoleum,” which would condense any biological matter into fuel, creating a fallback situation in the event of a cataclysmic global warming event.