Cause: Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.
Effect: Acid rain makes water sacidic and causes them to absorb the aluminum that makes its way from soil into lakes and streams.
Cure: Because nitrogen oxides are created in the process of burning coal and other fossil fuels, some power plants are changing the way they burn coal.
Cause: Global warming trend is human expansion of the "greenhouse effect" Warming that results when the atmosphere traps heat radiating from Earth toward space. Certain gases in the atmosphere block heat from escaping.
Effect: Ongoing effects include rising sea levels due to thermal expansion and melting of glaciers and ice sheets, and warming of the ocean surface, leading to increased temperature stratification.
Cure: Cure' found by scientists. A "technical fix" that could stop global warming by taking billions of tons of carbon dioxide out of the atmosphere and save the coral reefs from being destroyed by acidification has been developed by scientists.
Rawipol Korpraphong (Oat)