EARTH SCIENCE
CLIMATE AND ENVIRONMENTAL CHANGE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Increase in ice cover.
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Increase in forestation.
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Increase in ocean cover.
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Increase in urban areas.
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Detailed explanation-1: -The more reflective a surface is the higher the albedo value. Very white surfaces, such as fresh snow, reflect a very high fraction of incoming radiation back to space. Darker surfaces such as water, forests or asphalt have a much lower albedo and more of the sun’s energy is absorbed.
Detailed explanation-2: -Another important positive climate feedback is the so-called ice albedo feedback. This feedback arises from the simple fact that ice is more reflective (that is, has a higher albedo) than land or water surfaces. Therefore, as global ice cover decreases, the reflectivity…
Detailed explanation-3: -Ice-albedo feedback is a key aspect of global climate change. In the polar region, a decrease of snow and ice area results in a decrease of surface albedo, and the intensified solar heating further decreases the snow and ice area1.
Detailed explanation-4: -Painting surfaces such as roofs and pavements white or otherwise adding a reflective coating can be an effective way to increase the albedo of urban areas.