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
This is a long debunked myth.
Here is an article that goes into some detail.
https://www.carbonbrief.org/explainer-will-global-warming-stop-as-soon-as-net-zero-emissions-are-reached/
So there is some hope, if we can stop emoting CO2 ASAP. If one finds that a realistic path to belive in on the other hand is a matter of opinion.
I think it’s a misunderstanding, not a myth.
CO2 influences the greenhouse effect - keeping more solar energy on Earth.
Solar energy gets converted into heat, heat gets absorbed. Some of it gets absorbed by oceans. Some of CO2 also gets absorbed by oceans - their pH decreases. The greenhouse effect doesn’t require great time, but oceanic warming and acidification does require time. Interaction happens on the surface, but the volume is great.
Thus, delays in response are inevitable. Response may also depend on circulation - an ocean current slowing or speeding up.