No-Regrets Options

Willis Eschenbach rocks:

… These days this same concept is called the “no-regrets option”, a much clearer term but not a rule of thumb. Applied to the vexing CO2 madness, a “no-regrets option” is an action we won’t regret, whether or not CO2 is the secret knob controlling global temperature. I’m convinced CO2 is not, but others disagree. A no-regrets option is one that is of value no matter which side is right. …