It's important to remember that in REALISTIC worse case emissions projections, by 2050 - we will have CO2 higher than levels seen in the last 10 million years - but there was a 500 million year period where CO2 levels were an order of magnitude higher than that - and there's NO WAY we're getting there without destroying civilization first, so there's no chance on current trajectories that we turn the planet into Venus.

The super danger zone is ~1000 PPM CO2 - where ocean chemistry changes. In worst case scenarios in 50-60 years, we could get there - but there's a lot of reason to believe we won't, and we DEFINITELY aren't getting there by 2050.

The graph the main source shows is cherry-picked. Look at this: https://co2coalition.org/facts/for-most-of-earths-history-it...

Saying we're on a "hothouse" trajectory plays into the Apocalypse / Earth Becomes Venus trope, which is so ridiculous for our lifetime even under the absolute worst case realistic scenarios.