Answer:

It would go down.

Explanation:

On Earth, there is something called the Albedo effect. The Albedo effect has a major impact on the Earth's climate too. The albedo of a surface determines how much sunlight will be absorbed and warm the surface compared to another surface that reflects most of the light and does not change temperature. The amount of energy that is reflected by a surface is determined by the reflectivity of that surface, called the albedo. The lower the albedo, the more solar radiation is absorbed by the planet, causing temperatures to rise. If the albedo is greater and the Earth is more reflective, more radiation is reflected back into space, cooling the planet.