CFCs (chlorofluorocarbons) destroy the ozone layer allowing harmful radiation to reach the earth.
CFCs, or chlorofluorocarbons, which is the gas used in old refrigerators.
Hairsprays that contain chlorofluorocarbons (CFCs) are harmful to the ozone layer. CFCs break down ozone molecules in the stratosphere, contributing to ozone depletion. It is important to choose hairsprays labeled as "ozone-friendly" or "CFC-free" to help protect the ozone layer.
smoke from vehicles,moreover CFCs from refrigerators and many more may have.
It has a depressing Atmosphere
Carbon dioxide, the most significant man-made greenhouse gas, is the most difficult to determine. Most of it is absorbed into the oceans, but that can take up to 200 years.Methane is more powerful than carbon dioxide, but methane breaks down after 12 years.Nitrous oxide remains in the atmosphere for more than 100 years.CFCs (chlorofluorocarbons) and similar gases (Compounds containing chlorine and/or fluorine (CFCs, HCFCs, HFCs, PFCs)) can remain in the atmosphere for many years. The IPCC has a list at this link.Water vapour remains in the atmosphere a very short time, from hours to at most several days, before it falls as some kind of precipitation.
It's because what is happening is that sun's heat is entering the Earth's atmosphere but not leaving like it's supposed to, kind of like how a greenhouse works.
There is no atmosphere in interstellar space.
troposphere
CFC molecules are the most harmful kind of molecules. They are synthesized by Chlorine and Fluorine. What they do is react with ozone and decompose to destroy it.The real problem isn't molecules, it's halogen free radicals. A chlorine free radical (basically, a chlorine atom not bonded to anything else) is highly reactive and will react catalytically with ozone to break it down (the net equation is Cl. + 2O3 -> Cl. + 3O2; the dot next to the Cl represents an unpaired electron).Chlorofluorocarbons are prone to producing chlorine free radicals in a UV-rich environment (such as the upper atmosphere, where there is far more UV radiation than down lower), so it's possible that "CFCs" is the answer you were looking for.
It has a gassy atmosphere because Saturn is made from it.
Kind of guessing, but I think its called the Greenhouse Effect.
It has no effect.