You could say that since coal power involves emission of quicksilver and nuclear the emission of plutonium, both of which are scarily poisonous and both of whic

You could say that since coal power involves emission of quicksilver and nuclear the emission of plutonium, both of which are scarily poisonous and both of which can be filtered out and their emissions kept almost to zero, coal and nuclear are equivalent. But that ignores how different the poisons are. Scarily doesn't equal scarily.