CauseAcid 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.

EffectAcid rain makes water sacidic and causes them to absorb the aluminum that makes                    its way from soil into lakes and streams.

CureBecause nitrogen oxides are created in the process of burning coal and other fossil                      fuels, some power plants are changing the way they burn coal.

GLOBAL Warming
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.

EffectOngoing 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.

CureCure' 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)