Theory 78/Planetary/Planetary albedo
Albedo Balances Cloud and Ice
The claim
Planetary albedo is set by the ratio of cloud cover to ice cover, so two planets with the same temperature can reflect very differently depending on which dominates.
01Mechanism
Clouds reflect shortwave while ice reflects and insulates; the ratio determines the net reflective contribution.
02Prediction
Albedo should track the ratio.
03Refutation
Albedo tracking temperature would remove the surface split.