Two serious fallacies here: 1) The risk posed by nuclear war is correlated across nearly every individual, so the odds ratio between risks posed to you as an in

Two serious fallacies here: 1) The risk posed by nuclear war is correlated across nearly every individual, so the odds ratio between risks posed to you as an individual and nuclear war is of no use to the practice of risk management in such policy matters. 2) You are comparing the study of things entirely outside our control (volcanos), and potential doom which is entirely of our own making, towards the end of maintaining control by holding the world under the constant threat of annihilation.