As the UK announces the world's most ambitious target for cutting carbon and enshrines it in law, we're looking at how to improve the green credentials of one of the country's largest carbon contributors: the homes we live in. Plus, as India sees covid cases hit more than 300,000 a day, is the emergence of a variant there - and its detection here - cause for concern? And, the coffee species lost for 70 years and now rediscovered... Like this podcast? Please help us by supporting the Naked Scientists