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Albedo definition, Astronomy. the ratio of the light reflected by a planet or satellite to that received by it. See more.
Forested areas or areas with dark soil absorb more radiation and have lower albedos. Human and natural processes have changed the albedo of earthâs land surfaces. For example, earthâs average albedo was much higher during the last ice age than it is today. Human impacts such as deforestation, air pollution, and the decrease in Arctic sea ice have also affected albedo values. These changes alter the net amounts of energy absorbed and radiated back to space.