‘Well, you’re arguing facts against opinions. OK, I mean, the fact that the amount of carbon dioxide in the air has rocketed up since the Industrial Revolution, and continues to rocket up, is a fact. Now, it’s so much a fact that even the climate change deniers look away from it and don’t deny it.’
— Professor Steve Jones, Feedback, BBC Radio 4, 18 October
Have a look at that last sentence. It represents such a cherishably stupid, rude, fatuous, crabby, bigoted, ignorant, petulant, feeble, fallacious, dishonest and misleading argument that if it turned out the speaker in question was a professor of logic or philosophy you really might want to shoot yourself in despair.
Can you see what the problem is? Let me explain.