The document discusses acid rain, its causes, and effects. It also provides information on ways to reduce acid rain and the consequences if it is not addressed. Specifically, it notes that: 1) The burning of fossil fuels releases gases like sulfur dioxide and nitrogen oxide that combine with water vapor to form acids which fall as acid rain. 2) Acid rain damages plants, animals, and infrastructure by making bodies of water and soil more acidic. 3) Using alternative energy sources like solar, wind, nuclear and hydropower can help reduce acid rain by producing fewer emissions. Failing to address acid rain could negatively impact human health by making foods and crops acidic.