I have remarked in the past, as have others, that it makes good sense to “err on the side of caution” when it comes to the issue of climate change. If we suppose that the scientific research is all wrong, or mostly wrong, or that humans have had nothing whatever to do with global warming, (both of which are extremely unlikely) we should still act as though the threat is very real. While it would require that the Congress get out of the pocket of Big Oil, for most of us it would involve minimal personal sacrifices — such as lower temperatures in our houses in the Winter or higher temperatures in the Summer. But if we were to rely on renewable energy, drive smaller cars, walk or ride a bike, we might just begin to reverse the trends that science has shown are now taking place. In a word, we would, perhaps, avoid a calamity of global proportions that is otherwise almost certain to take place. Thus, it simply makes good sense to err on the side of caution. It costs us little and could help preserve the planet. Those who refuse to take this line of reasoning are making a huge gamble that they are right and the scientific community is wrong. This is a gamble that no human being should take upon himself or herself, and those who are in positions of power to mandate remedies and refuse to do so assume a huge responsibility; they are being just plain stupid, if not immoral.
I am reminded of “Pascal’s wager” which he recounts in his Pensées where he suggests that it would be wise to bet that God exists because even if He doesn’t we would lead better lives than if we insist that He does not exist and pursue a dissolute life and risk all. And if we accept that He does exist, we might enjoy the delights of heaven after we die — rather than the awful alternative. Pascal insists it is simply a matter of common sense. As he puts it in his somewhat terse style:
“But you must wager. It is not optional. . . Let us weigh the gain and the loss in wagering that God is. Let us estimate these two chances. If you gain, you gain all; if you lose you lose nothing. Wager, then, without hesitation that He is. . . “
The issue, again, as Pascal saw it, is pressing: we must wager. So is the issue of global warming, except that the gamble in the latter case involves the entire planet whereas Pascal is only concerned about an individual soul. If we lose, we lose all.