How to constrain unconstrained global-warming predictions

Suddenly, the hitherto-unconstrainable equilibrium sensitivities become constrained – and their entire interval turns out to be below the lower bound of the currently-imagined interval. Inserting the 255 K emission temperature in the equations for the relevant feedback-related variables calms the entire system down, and leads us to expect a small, slow, harmless, net-beneficial warming over the coming century.…