Yeah, exactly. We have a relatively short window of a few centuries, perhaps less, to master nuclear power (perhaps even nuclear fusion), photovoltaic panels, efficient wind turbines (including more complex offshore construction) and deploy them all at scale.

And to do it all before we cook ourselves in greenhouse gases.

I'm rather optimistic about it but it does seem that most people don't fully grasp the importance of such a transition.

Ha. I wasn't talking about the cooking. We're well into "I hope we get lucky" territory on that, let alone in "a few centuries". I was talking about literally running out.

The US is a large place with a lot of potential for extraction, so if you ignore the bit where the hostile climate kills them instead they could keep extracting at similar rates for maybe a century or more, but it does run out.