Researchers have found a new way to test for water contamination. And it's thanks to our poop. In late 2024, researchers from Chungnam National University and Gyeongsang National University published their findings on a new technique for detecting fecal contamination in water using human viral DNA, known as microbial source tracking (MST), in the journal Water Research. And while this may make you let out a little "ew" under your breath, it's critical to know that fecal contamination is, in fact, a significant issue both globally and here in the United States. The World Health Organization explained, "In 2022, globally,...