growing up, teresa vicente spent long days in spain’s mar menor swimming in transparent waters, cupping seahorses in her hands and partying under the moonlit sky. out there, she recalled, time stood still. but over the decades, chronic contamination from mining, development and agricultural runoff turned the once crystal-clear waters of europe’s largest saltwater lagoon into a graveyard. a mass fish die-off in 2019 prompted the professor of philosophy of law at the university of murcia to take action. ov