I stay away form chlorine when I can. Salt water pools are an excellent way to avoid high exposure to chlorine.
We don't know the full effects of chlorine on the skin, if you are looking for alternatives I would recomend looking into Bromine this is from the same family as chlorine or Halogens as they are called.
Bromine is usually used in hot tubs as it is a lot more resistant to heat but can also be used in above ground pools.
There are no proofs that chlorine can initiate cancer..hmm I think it's not really proven...
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.