What makes a plastic recyclable? How can we design a plastic to be as sustainable as possible? And how does the way that we design specific products affect their impact on the environment?  In this episode we do a deep dive into the science of plastics – looking at how we might design plastic products with sustainability in mind. Dr Jenni Garden from the University of Edinburgh talks us through her research into different types of materials, while Mark Pawsey MP brings his 25 years experience of working in the field of plastic packaging. Meanwhile David Santillo talks us through what Greenpeace is doing to tackle the plastics problem. See acast.com/privacy for privacy and opt-out information.