Our episode is about heating and cooling buildings – quite timely as we enter the colder winter months. According to the Climate Change Committee, 29 million homes need to be upgraded to low carbon systems by 2050. This is not an easy task. According to Parliament, UK houses are one of the oldest and worst insulated in all of Europe and data from the CCC says that heat decarbonisation in each home will cost £10,000 on average per household – posing a major challenge to reach targets. In...