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The original was posted on /r/wtf by /u/RamblingSimian on 2024-04-06 22:33:00.
Original Title: In the 70s, certain manufacturers didn't want us to believe that phosphorus in detergent caused toxic algae blooms. This picture helped change that - scientist David Schindler divided a lake with plastic and added phosphorus to one half, causing algae to grow out of control in that half.
