Tesco and Sainsbury’s have raised concerns about food supply resilience following recent heatwaves and wildfires across Europe, according to reports describing a letter sent to Andy Burnham. The retailers urge ministers to take action to strengthen food security, citing disruptions and pressures linked to extreme weather conditions. The letter frames the issue as one requiring government attention, pointing to wider risks to the flow of food supplies rather than any single product or location. The outlets report that the supermarkets are calling for steps that could help manage and reduce vulnerability in supply chains in the face of climate-related events. While the reports focus on the retailers’ warnings and the message delivered to the minister, they do not provide detailed policy proposals or specific timelines in the excerpts available. Overall, the coverage indicates the supermarkets are using the letter to prompt a broader response to food security challenges that can arise when weather events affect production, logistics, or availability.