Write a short note on ozone layer deplection in about 20 lines

Towards the end of the 1970's, there has been observed a two ozone layer events which relate to each other.

Explanation:

The first observation is the steady decrease in the amount of ozone layer in the earths atmosphere while the second one is an effect to the polar regions of the earth characterized by the reduction of the spring seasons in the stratospheric zone of the ozone layer.

Research has given the results that the main causative agent of the depletion of the ozone layer are human activities. The shift from using organic products to using a lot of chemicals, e.g, bromine and chlorine.

The effect of ozone depletion is that, it causes a number of cancer cells, it leads to aging of the skin, and also causes genetic mutations thereby affecting the current and future generations.

The ozone layer, when healthy, serves the purpose of preventing from harmful U.V rays from the sun.

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."