To reduce carbon emissions and meet climate goals, politicians in Oxford are attempting to restrict the number of times some vehicles can drive through the city each year while still allowing unlimited access via the City’s ring road. The city also has a long-term plan to be a 15-minute city, where food, medicine, education, and leisure facilities are all within a 15-minute walk or cycle from someone’s front door. This plan has been conflated with its traffic-restriction trial by conspiracy theories that present the measures as a form of climate lockdown. Newsnight’s Science Correspondent Kate Lamble reports on how a conspiracy theory about “15-minute cities” became tangled with some people’s real concerns over the measures.