Per kwh, a coal-fired powerplant pollutes less than your average Camry. I'm not sure how significant the average transmission loss is, but powerplants obviously have enormous efficiency advantages over a standard internal combustion engine.
elrond amandil writes: James Randi offered $1 million USD to anyone who can prove that a pair of $7,250 Pear Anjou speaker cables is any better than ordinary (and also overpriced) Monster Cables. Pointing out the absurd review by audiophile Dave Clark, who called the cables "danceable," Randi called it "hilarious and preposterous." He added that if the cables could do what their makers claimed, "they would be paranormal."