How is ozone formed in the stratosphere?

Ozone is tri-atomic oxygen..In stratosphere,oxygen breaks into atomic oxygen due to the solar radiation and atmospheric pressure conditions. The atomic oxygen combines with atmospheric oxygen to form ozone. O2->O+O.

O+O2->O3(ozone) Pollutants like CFCs are ChloroFluoroCarbons are light in weight and hence rise up to the stratosphere and attack ozone and results in the formation of chlorine atoms. These chlorine atoms are responsible for the degeneration of ozone molecules. CCl2F2->CClF2+Cl Cl+O3->ClO+O2 ClO+O3->2O2+Cl The chlorine atom is again regenerated and this chain reaction continues.It is estimated that one chlorine atom can destroy 100,000 ozone atoms in its lifetime.So CFCs are considered to be threatening even in small amounts.

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The key to forming ozone, is to break apart an oxygen atom In the tropopause, 215nm or more energetic UV light breaks apart an oxygen molecule. Sometimes a loose oxygen atom attaches to an oxygen molecule. Sometimes a loose oxygen atom attaches to a nitrogen molecule, and some time later, visible light will excite the oxygen "loose" and it will bond with the next oxygen atom it comes in contact with In the troposphere, ozone is most commonly formed through the interaction between oxygen, NOx (infernal combustion products), VOCs (unburned fuel, biologically-sourced methane, etc), and purple or more energetic light from the Sun.

Ozone is formed throughout the atmosphere in multistep chemical processes that require sunlight. In the stratosphere, the process begins with the breaking apart of an oxygen molecule (O2 ) by ultraviolet radiation from the Sun. In the lower atmosphere (troposphere), ozone is formed in a different set of chemical reactions involving hydrocarbons and nitrogen-containing gases.

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I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.