The Nationals announced a last-minute deal — but the real decisions on climate and emissions had already been made

Consistency, persistence and stubbornness. They can be tremendous virtues, so long as you are sure you are right.

And, if you’re not, then as economist John Maynard Keynes is said to have stated: “When the facts change, I change my mind. What do you do?”

National Party leader Barnaby Joyce and his…