Itty53, 1 year ago to science in Ancient Humans Created Super-Fertile “Dark Earth” That sounds a lot cooler than "civilizations have to do something with their poop".
That sounds a lot cooler than "civilizations have to do something with their poop".
teft, 1 year ago to science in What Happens After You Flush: How Wastewater Treatment Plants Transform Sewage Into Safe Water Anyone that wants to watch a good documentary on this process can watch the 1994 film In the Army Now with Paulie Shore.
Anyone that wants to watch a good documentary on this process can watch the 1994 film In the Army Now with Paulie Shore.
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