We’re long past the days when uttering the words "climate economist” elicited confusion, pity, or worse: "Which is it? Pick your side! You can either focus on the climate, or the economy, not both.”

Nowadays, though, there’s another reaction that is more common, especially in many progressive circles that are typically most concerned with tackling climate change: "It’s your fault.”

No, not personally. Look, I’m vegetarian, have never driven, and share 750 fully electrified square-feet with two kids and a dog. (Rescue, of course, thanks for asking.) That list tends to soften the blow. But as an economist I know that individual action won’t do. It takes policy instead. And herewith begin the problems.