What is acid rain? How does it affect fish populations and their habitat?
Acid rain is caused primarily by the burning of fossil fuels, such as coal, in power plants. The emissions from those fuels result in a reaction high in the atmosphere where the chemicals, namely sulfur dioxides (SO2) and nitric oxides (NOX), bind with moisture, creating a solution of sulfuric acid and nitric acid that then falls to earth as rain or snow.
Acid rain causes a cascade of effects in coldwater environments that harm or kill individual fish, reduce fish population numbers, completely eliminate fish species from a body of water, and decrease biodiversity altogether.
For more information on acid rain, visit the following web sites: