So “global warming” means “[e]ither … rampant global warming or a new ice age,” according to Duke’s Prof. Schlesinger.

Such unfalsifiability is characteristic of the Procrustean bed. It takes its name from that unpleasant fellow of legend, Procrustes, whose joy it was to waylay travelers and tie them to his bed ? which was truly one-size-fits-all. If the traveler was too short, Procrustes stretched him till he “fit.” If he were too tall, Procrustes had his dangling appendages lopped off.