The Economist recently published an article around a problem it considers dire: draughty homes. It says "Britain's homes are among the oldest and least efficient in Europe" and notes that "if people are to cut their energy use and benefit from lower bills in the long term, they will have to improve the energy efficiency of their homes." The piece offers solutions on how to fix the nation's 30 million draughty homes while helping Britain reach net-zero emissions, but these fixes raise sticky questions.