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The albedo, (Latin for white) is a measure of reflected sunlight. Charcoal has an albedo of 0,04; snow 0,9 The planet with the highest albedo is Venus, whereas Mercury is theâ¦ lowest.
It has long been known that Earthâs albedo must have been higher when it was in its glaciated state, but it was in the late 1950s and 60s that Budyko published a series of papers attempting to quantify this effect and to determine whether this would be the feedback required to enhance the effect of the Milankovitch orbital variation to a level such that large-scale glaciation could occur.