https://www.sciencedirect.com/science/article/pii/S2405844019365958 (Control-F “...

https://www.sciencedirect.com/science/article/pii/S240584401... (Control-F “ Table 2. Scenarios for the optimal carbon tax.”)

Optimal tax is closer to $126/ton, so my “shooting from the hip” was a bit low.

Carbon credits in Europe are trading for 50EUR/ton ($58 USD) currently.

(nobody is currently paying anywhere near the true cost per ton of emitted carbon)