From Prof. Eliot Jacobson:
Wow! Wow! Wow!
North Atlantic sea surface temperature anomalies are going vertical again. And yes, I needed to extend the y-axis.
Yesterday’s temperature of 24.49°C (76.08°F) was 4.2σ above the 1991-2020 mean. The previous high for July 17 was 23.71°C (74.68°F) in 2020.
https://twitter.com/EliotJacobson/status/1681321023306874880
Apparently the scale that’s required makes it completely impractical, especially given the timelines that are also required.
As far as I know, we don’t have any CC ideas that wouldn’t push us over our emissions limit to create at the scale we would need.