Physics – Atmospheric and Oceanic Physics
Scientific paper
2005-12-19
Mitigation and Adaptation Strategies for Global Change, Volume 12, Number 4, May, 2007
Physics
Atmospheric and Oceanic Physics
21 pages, 3 figures. In press with Mitigation and Adaptation Strategies for Global Change, Springer, NL
Scientific paper
10.1007/s11027-005-9024-3
This study explores the potential to enhance the reflectance of solar insolation by the human settlement and grassland components of the Earth's terrestrial surface as a climate change mitigation measure. Preliminary estimates derived using a static radiative transfer model indicate that such efforts could amplify the planetary albedo enough to offset the current global annual average level of radiative forcing caused by anthropogenic greenhouse gases by as much as 30 percent or 0.76 W/m2. Terrestrial albedo amplification may thus extend, by about 25 years, the time available to advance the development and use of low-emission energy conversion technologies which ultimately remain essential to mitigate long-term climate change. However, additional study is needed to confirm the estimates reported here and to assess the economic and environmental impacts of active land-surface albedo amplification as a climate change mitigation measure.
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