Regarding coal and methane: clean means less sulfur content while dirty means more acid-rain-causing sulfur content. For example: East Asia uses mostly dirty coal, hence the higher amounts of [mostly] local acid rain.
Also 'overheard', say 1990: "Germany's famous 'Black Forest' , due to acid rain, has turned black." Further {good news} to this, I recently [2005] heard another report that specifically stated that "this is no longer the case."
co2+h20= carbonic acid
the acids mix with water in the air and fall to earth as acid rain
combustion
It is called an Acid Rain.
Acid rain
co2+h20= carbonic acid
the acids mix with water in the air and fall to earth as acid rain
it causes acid rain
combustion
Sulphuric acid from burning coal.
Massive and Immense, due to It's burning of dirty [with sulfur] coal.
Burning coal.
Acid rain is not a solution but a problem, and can be reduced through use of low sulfur coal, and controlling emissions.
acid rain
Burning coal
It contributes by the burning of fossil fuels like coal that realeases sulphur
It is called an Acid Rain.