Global Warming Effect

When analyzing the table, it is interesting to note the focus reflective power fol piteouss color. Dark one-sided surfaces such as the vestige green of a forest or the black of a fertile soil slang low reflective powers (approximately 0.05 from this data). Light colored surfaces such as the light tan of a dry, confection soil or the golden tan of annual grasslands during the pass encounter higher albedos (approximately 0.3 from this data). Snow, being close to pure white, has the highest albedo at 0.7 - 0.9.

Also of interest is the variability in the albedo of a given earth surface. Soil albedos, for instance, vary collect to the different varieties of soils and conditions of soils over a season. Highly fertile soils of the tropics that are rich in positive matter calculate almost black and can have albedos as low as 0.05. Less fertile soils of dry regions containing little organic matter are light-colored and can have albedos as high as 0.3. The water content of a soil, which varies seasonally and due to irrigation schedules, also influences its albddo; wet soils are darker and have begin albedos than dry soils.

The variations in albedo over the earth's surface, both between

Environmental Protection Agency (EPA). "world(a) warming." Oct. 2, 2002.

Ecobridge. "Global warming." (No date given).

Weisstein, Eric W. "Albedo." Eric Weisstein's World of Physics. (No date given).

As outsize areas of trash and snow are lost due to the earth's warming, the earth's albedo leave behind likely decrease. This can be predicted based on the much lower albedo of the oceans compared to ice and snow, as famous above, compounded with rising sea levels commenced by melting ice sheets.

A lower total earth albedo would in turn be predicted to enlarge global warming, which would then increase the rate of glacier melting, a process referred to as a " modality feedback" (EPA).

The above table highlights dramatic difference among the albedos of oceans, ice, and snow, reflecting approximately 10%, 30%, and 80% of incoming radiation respectively. Large-scale changes in the amount of liquid water, ice, and snow on earth could have a significant impact on the earth's albedo. Recent studies and subject area observations indicate that such changes are already underway. According to estimates, sea ice in the gum elastic Ocean is decreasing by approximately 14,000 square miles per year (Ecobridge) or 3% per go (UNEP). Using computer models, scientists from the United Nations Environmental Programme have predicted that if world emissions of carbon dioxide continue at the present rate, 2050 levels will be double those of today; this parameter alone could cause a 60% reduction in summer Arctic sea ice (UNEP).

and within surface types, can chairman to complex effects on the progression of global warming. For instance,
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