Effects of Acid Rain

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Acid Rain
The term acid rain refers to what scientists call acid deposition.  It is caused by airborne acidic pollutants and has highly destructive results. Scientists first discovered acid rain in 1852, when the English chemist Robert Agnus invented the term.  From then until now, acid rain has been an issue of intense debate among scientists and policy makers. Acid rain, one of the most important environmental problems of all, cannot be seen.  The invisible gases that cause acid rain usually come from automobiles or coal-burning power plants. Acid rain moves easily, affecting locations far beyond those that let out the pollution.  As a result, this global pollution issue causes great debates between countries that fight over polluting each other's environments. Causes:

For many years, there was considerable debate and disagreement over what caused acid rain.  Recent scientific work, however, has helped to clarify this The primary causes of acid rain are sulfur dioxide and nitrogen oxides.  These chemicals are released by certain industrial processes, and as a result, the more industrialized nations of  as well as the US suffer severely from acid rain. Most sulfur dioxide comes from power plants that use coal as their fuel.  These plants emit 100 million tons of sulfur dioxide, 70% of that in the world. Acidic deposition occurs in two ways: wet and dry. Wet deposition is any form of precipitation that removes acids from the atmosphere and deposits them on the Earth’s surface. Dry deposition polluting particles and gases stick to the ground via dust and smoke in the absence of precipitation. This form of deposition is dangerous however because precipitation can eventually wash pollutants into streams, lakes, and rivers. Acidity itself is determined based on the pH level of the water droplets. PH is the scale measuring the amount of acid in the water and liquid. The  ranges from 0 to 14 with lower pH being more acidic while a high pH is alkaline;...
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