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Positive And Negative Effects Of Solar Radiation

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Solar radiation, also called global radiation or insolation, refers to the sun 's radiant energy, which came from its nuclear fusion reaction that produces electromagnetic energy. Solar radiation has a spectrum that is near to that of a black body and has a temperature of around 5,800 K. Nearly half of the radiation is in the near-infrared, while some are in the ultraviolet spectrum. Since the late 1950s, some scientists have been measuring its quantity and research indicated a trend of “global dimming” of 1% every decade (i.e. less solar radiation on the surface) (Cohen & Stanhill, 2016, p. 497). Conversely, consecutive studies indicated that solar radiation’s negative trends is reversing as several sites demonstrated “brightening” in the late 1980s and early 1990s (i.e. more solar radiation coming into the earth’s atmosphere” (Cohen & Stanhill, 2016, p. 499; Wild et al., 2005). Other scholars underlined the difficulty of studying the quantity of solar radiation on earth due to declines in air pollution in Europe and several industrial nations that may have simply allowed solar radiation to enter the atmosphere more efficiently (Cohen & Stanhill, 2016, p. 497). Solar radiation is the main source of energy and life on earth. However, periods of dimming and brightening through changing solar radiation levels can have positive or negative effects on the evaporation rate, cloud formation, and hurricane/cyclone developments.

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