[soldarnal]

Presumably the goal isn't reducing carbon dioxide emissions, but maintaining global temperatures, in which case possible solutions do pull in many different directions...

But anyway, that misses the point. The wager isn't cost-benefit analysis where probabilities and expected values are certain; it's decision making in the absence of compelling evidence. What you have essentially done is respond to the multiple claimants problem by saying, "But any form of belief in the Christian God pulls in more or less the same direction." In the uncertainty that the wager confronts, however, "reducing CO2 emissions" and "increasing CO2 emissions" have the same expected value - that is, they are equal claimants. Hence my point that the multiple claimants problem is equally devastating when the wager is applied to global warming.