You benefit from plastic from the moment you get up and use your toothbrush or kettle. Plastic is embedded in agriculture – and it keeps you alive if you end up in hospital. Even some of our money is made from it. Yet I can’t watch the news without being bombarded by the evils of plastic. As a polymer scientist, it feels like my life’s work is dismissed as immoral by even my hero Sir David Attenborough, simply because I deal with plastics.