[Strategerist]

Let me get this straight. Volcanoes release sulfur, a pollutant, into the atmosphere, it reflects sunlight into space, thus cooling the planet. Then why are we removing sulfur from our fuels?........

Any sulfur released from the surface never makes it to the upper atmosphere to form sulfuric acid and block sunlight. It's just a pollutant.

Ozone is similar-ozone in the upper atmosphere blocks UV, making life possible, but Ozone at the surface is an irritating pollutant.

[Andrew Byler]

Any sulfur released from the surface never makes it to the upper atmosphere to form sulfuric acid and block sunlight. It's just a pollutant. Ozone is similar-ozone in the upper atmosphere blocks UV, making life possible, but Ozone at the surface is an irritating pollutant.

Makes you wonder then how Chloroflourocarbons (CFC) get out of air conditioner units and manage to float up into the ozone layer. Are they somehow lighter than air, despite the enormous number of atoms in each molecule?