蜜芽传媒

When Laurene Allen heard that low levels of toxic chemicals had leaked from a factory into her town's water supply she was horrified . She began to search scientific literature to find out more about the chemicals known as PFAS, used in the manufacture of a wide variety of goods from fireproof clothing to non-stick pans, food packaging and even toilet paper.

Research showed the town had a cluster of unusual or uncommon medical conditions. Many people questioned whether exposure to these chemicals through their drinking water could have been a factor. Laurene brought residents together and they campaigned for tougher laws to stop such chemicals entering drinking water. Eventually the chemical plant closed. Its owners are still involved in efforts to clean up the pollution left behind.

Laurene is one of the 2025 winners of The Goldman Environmental Prize.

Plus, another chance to hear the 2020 winner of the Prize, Kristal Ambrose. She's a student from the Bahamas who persuaded her government to ban single-use plastics.

Presenter: Jo Fidgen
Producer: Julian Siddle

Get in touch: outlook@bbc.com or WhatsApp +44 330 678 2707

(Photo: Laurene Allen. Credit: The Goldman Environmental Prize)