The phrase
"equilibrium climate" refers to the stable and balanced state of Earth's climate system over a long period of time. It represents a point where the amount of energy entering (from the sun) and leaving (reflected back to space) the Earth system is in balance. In this state, the average global temperature remains fairly constant, without major fluctuations. It helps scientists understand what the future climate might be like if factors like greenhouse gas concentrations stabilize, allowing the planet to reach a stable and predictable state.
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