Rain that has a flamboyantly low pH, due to contact with atmospheric pollutants such as sulphuric oxides. Atmospheric pollutants are caused by human activities such as burning fossil fuels that emit gases which combine with water vapors, oxygen, and other chemicals in the atmosphere to create solutions of sulphuric acid and nitric acid. Windfall is capable of spreading these acids across hundreds of miles that fall onto the earth in the form of precipitation (rainfall), thus creating acid rain.

Other than human-related activities, natural causes can also lead to acid rain. Volcanoes and decayed agriculture release gases that produce acid rain. The detrimental environmental effects of acid rain are seen in the soil, plants, lakes, rivers, oceans, and aquatic life. As acid rains flow through soil, the ability for crops to grow throughout the soil becomes compromised. Furthermore, important minerals such as aluminum are washed from the soil and into water streams, rivers, and lakes, which makes water toxic to the animals exposed to it. Acid rain also results in harsh effects on human health. When sulphuric and nitric oxides are inhaled, our lungs can be damaged, including our respiratory system.

So what solutions must we take in order to prevent the occurrence of acid rain and its harmful effects? The first method needed to be taken is the reduction of pollutants that cause it through the consumption of less fossil fuels since their smoke is the primary cause of acid rain. Alternative ways of producing energy should be favored such as renewable energy (solar panels, wind turbines), walking, and biking. However, while these steps can be initiated immediately, it will take many years to reverse the effects that acid rain has had on our environment.