There has always been a range of estimates of how much warming we’ll get for a given amount of dumping greenhouse gases into the atmosphere. What I think is going on is that as we get closer to the boundaries of maybe-not-crashing-civilization levels of warming, the consequences of reality matching one estimate or another has become salient.
And our Dear Leader here in the US is gonna approve even more coal power plants, citing AI as justification.
Fortunately coal is more expensive than renewables now and most companies see profit above politics. Just like the oil companies who were like “ok… We can drill with impunity, but it doesn’t make financial sense because we already have more permits than we need, so we won’t be looking for new permits anytime soon”. But I’m sure subsidies will be raised to take care of that.