Well, Tonnington, according to folks of your mindset, humans are nothing more than an insignificant version of animal diversity.
How come then that human activity is decried in your world as something that destroys any possible future of any living creature in the world?
If nature, by it self cleans treats bear crap, hippo crap and probably (but hopelessly liberal crap) how come you object to human help of nature cleaning up and treating crap, thereby making the cleaning and treating more efficient?
BTW, its all a matter of conditioning. A few years ago I lived one little house, next to a dairy farm; I was on my own well and for disposal I had a septic tank. One day, just for curiousity, I took a sample of my well water to the municipal testing lab. The results indicated that both my wife and I should have been dead due to the abundance of E coli bacteria in my well water. A few months later just to be safe, we installed ultra-violet light on our water line, but even in the lack of it, we survived unscathed. I know, you will declare that it effected my brain, but I would expect no less fro someone like you.
Also, in Europe, manure from any farmer's backyard is spread over the land, plowed under, untreated in the farmer's land. Without it the yield would be significantly less.
Also, thanks for the "BAD" rating you so graciously provided on my post to somebody not you. Have you ever or will you ever be smart enough to mind your own business?