“It’s unclear to me how this figure was arrived at,” Dr Maslowski said. “I would never try to estimate likelihood at anything as exact as this.”

Mr Gore’s office later admitted that the 75 per cent figure was one used by Dr Maslowksi as a “ballpark figure” several years ago in a conversation with Mr Gore.

Oh Al Gore, will you ever catch a break? Oh wait, he’s made at least $100 million since leaving office (good for him, I liked his movie).