Una cita memorable:
Finally, we need to develop a much keener sense of what a scientist is qualified to talk about and what he is not qualified to talk about. Climatologists, for example, are qualified to talk about the science of climatology (though subject to all the intrusions upon pure science I have already mentioned). They are not qualified to say, however, that “we must act now” by imposing government “solutions” of some imagined sort. They are not professionally knowledgeable about what degree of risk is better or worse for people to take; only the individuals who bear the risk can make that decision, because it’s a matter of personal preference, not a matter of science. Climatologists know nothing about cost/benefit cosiderations; indeed, most mainstream economists themselves are fundamentally misguided about such matters (adopting, for example, procedures and assumptions about the aggregation of individual valuations that lack a sound scientific basis). Climate scientists are the best qualified people to talk about climate science, but they have no qualifications to talk about public policy, law, or individual values, rates of time preference, and degrees of risk aversion. In talking about desirable government action, they give the impression that they are either fools or charlatans, but they keep talking―worst of all, talking to doomsday-seeking journalists―nevertheless.