Actually it was mostly said by the bonkers AI-obsessed Redditors (for whom it seemed to be the absolute consensus), though the tech bro CEOs like to allude to it too. They just make it just vague enough to scare investors and governments but also be plausibly denied later when it turns out not to happen.

By the way, I don’t think climate denial has (or at least should, though I know Americans like to politicise everything under the sun) anything to do with ‘conservatism’.