And perhaps certain biological amendments to mitigate them. Certain organisms seem particualry suited and I am sure there are others...
But the current means are scary and untested...
Funny, I just finished rereading Silent Spring; it seems [url=https://findarticles.com/p/articles/mi_qa3854/is_200201/ai_n9036182/?tag=content;col1]Ms. Carson commented on poisoned Georgia cows[/url], but fity years later, here we are...The sludge contained levels of arsenic, toxic heavy metals and PCBs two to 2,500 times federal health standards.
His reasoning was..."The power of population is indefinitely greater than the power in the earth to produce subsistence for man"
So the more people you get, the less happy they will be (he was sort of responding to John Stuart Mills who was pretty sure we could get to a Utopian society in short order; I think history has borne out that Malthus is probably right, but Mills was daydreaming...)"Must it not then be acknowledged by an attentive examiner of the histories of mankind, that in every age and in every State in which man has existed, or does now exist...
That the increase of population is necessarily limited by the means of subsistence,
That population does invariably increase when the means of subsistence increase, and,
That the superior power of population it repressed, and the actual population kept equal to the means of subsistence, by misery and vice."
It is a scientific fact that what goes in comes out. That is how crystal meth is purified. You get all your friends at a party to pee in a bucket then the crystal meth is extracted from the pee and it is better and more pure the second time around. I would not be worried about heavy metals unless there are factories dumping in the sewer system. By law all cities a certain size and or with certain type factories are required to have monitors in the sewer pipes. If anyone dumps illegal stuff in the sewer it sets off an alarm. With several monitors it can be traced up stream to find out who dumped it. Fines can run into millions of $$$$$$$$.Homesteader wrote:I would be very concerned with heavy metals as well as pharmaceutical residues.