M&S Overhauls Refrigeration as Extreme Heat Becomes Climate Reality

Marks & Spencer is installing refrigeration units rated for ambient temperatures up to 45°C, with improved door seals to prevent heat loss. CEO Stuart Machin signaled this reflects permanent structural risk, not temporary anomaly. A nine-day heatwave recently depleted ice-cream stock across six product lines. Sainsbury's announced parallel hundreds-of-millions in refrigeration upgrades, indicating sector-wide realignment of engineering standards for UK retail.