There are excellent reasons for varied policies to deal with pollution and the damage it causes. Like, for example, the damage caused by pollution being an excellent justification of plans to deal with it. However, that does not mean that all plans to deal with pollution are justified by reference to the damage it causes. Which is the problem with the real world application of the entirely true and proper general contention. My own suspicion would be that Sadiq Khan has just fallen foul of this with his idea of a pollution control zone in London:
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Sadiq Khan has unveiled details of his plan to introduce an “ultra-low emission zone” covering a huge swath of London in the next few years.