Plastic waste is a problem that the world needs to solve, and this week Luke explains why new discoveries are offering a potential route away from the tonnes of waste we accumulate every year, and it involves a method that took him by surprise. Listen and subscribe to Show Me the Science on Apple Podcasts ,Google Podcasts and Spotify. Download, listen and subscribe on the Newstalk App. You can also listen to Newstalk live on newstalk.com or on Alexa, by adding the Newstalk skill and asking: 'Alexa, play Newstalk'.

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“What did the council decide on item 42?” — answered with the speaker and the moment.