Why did 1,000 Swiss citizens bury their underpants?

Study: Land use is the biggest factor in determining decomposition rates of organic cotton underpants. https://arstechnica.com/science/2026/08/why-did-1000-swiss-citizens-bury-their-underpants/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social