Ambient IoT hits food supply

Walmart will embed micro‑Bluetooth sensors in shipping labels to track 90 million grocery pallets in real time across all 4,600 U.S. stores and 40 distribution centers. This replaces manual scans with continuous monitoring of location and temperature, enabling faster recalls and potentially less spoilage while shifting tasks from people to systems. — National‑scale sensorization of food logistics reorders jobs, food safety oversight, and waste policy, making 'ambient IoT' a public‑infrastructure question rather than a niche tech upgrade.