We are certainly facing many environmental crisis, there's no doubt about that... But the data here seems limited. I assume we simply don't have measurements older than 50 years to add to this graph?
Edit: Here is a better graph!
Still alarming, but the data only goes back so far... It feels like something everyone needs to pay attention to and take seriously, but perhaps turning down the Vault-Tec guy knocking at your door is still a reasonable action to take.
We're fucked no matter what, but the degree of the fucking is in question still. 1.5 degrees is not great, 2.5 is really bad. 4 degrees is civilization-ending catastrophe.
And good news! We've probably averted 4 degrees through our actions over the last 20-40 years or so. Iirc we're still on track for 2-3 degrees. We have more work to do.