Plastic waste expert Mark Miodowonik explains the history of plastic and why he believes manufacturers must be responsible for making sure plastic is recycled.
Anthropologist Alex Bentley tells The Conversation Weekly about his research how modelling the spread of COVID sparked new research on the spread of disease in early civilisations.
Water scientist Patrick Byrne tells The Conversation Weekly podcast what testing rivers can reveal about the biggest, often hidden, sources of PFAS pollution.