|equilibrium climate response|
(Aka ECR | equilibrium response)
The ultimate steady-state response of the climate system to a forcing.
As opposed to the transient climate response, which is climate system's initial response to a forcing.
Example Usages -
1. "There is a difference between equilibrium climate response (ECR) and transient climate response (TCR). Much of the response from a given increase in CO2 comes through feedbacks to the initial warming. Those feedbacks are not immediately realized. Further, the oceans represent 92-3% of the thermal capacity of the climate system. They do not release stored energy immediately. Indeed, they may store energy for centuries. ECR is the final realization, in surface temp (if that's the metric you choose), of a given increase in CO2. TCR is what's happening right now."
(Source: Skeptical Science )