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Taking your beliefs as stated here at face value, I don't see how that would be relevant either way: you clearly live in a world where evil deeds are physically possible, where your god (for whatever reason, free will or otherwise) does not intervene to prevent it. Pollution just seems like another one of those things — a death by a thousand cuts, where (if you will excuse the mixed metaphor) you can't tell which straw broke the camel's back.