Logistics
Supply chains and disruption
Most food that reaches a city has already changed hands several times: assembler, processor, wholesaler, retailer. The chain is ordinary until one node fails. This page names the failure types. It does not invent a “food miles” average or a share of world calories that cross a border.
The path, stripped down
- Production and first assembly (farm, fishery, or processor-owned contract).
- Storage and transformation (elevators, cold chain, mills, packing plants).
- Long-haul movement (road, rail, inland waterway, or sea).
- Last-mile retail or institutional catering.
- Household preparation — where utilization, from the security pillars, actually happens.
Each step has its own choke: power for cold storage, diesel for trucks, a berth at a grain terminal, a sanitary certificate, a working payment rail. A harvest can be intact while the chain is not.
Ordinary ways the path breaks
- Weather and water. Drought, flood, and heat hit yield and also hit roads and storage. This desk will not assign a global tonnage to any one season without a named official series.
- Energy and fertilizer. Fuel and nitrogen are inputs to both production and movement. Corridor and bunker-fuel context belongs on OilRoutes.
- Ports and chokepoints. Bulk grains and oils move like other dry and wet cargo. A closed strait or a mined approach is a food event and a shipping event at once.
- Export and sanitary rules. Temporary export bans, licensing, and SPS holds are policy instruments, not weather. They are easy to moralize and hard to measure in real time.
- War and violence. Fields, silos, and corridors become targets or no-go zones. Cite the frozen hub at armedconflicts.org rather than restyling a conflict map here. Political-violence context: Political Violence Map.
Where prices show up
A broken node can show up first as a basis shock (local cash versus futures), a freight spike, or an empty shelf — three different measurements. Commodity and freight reactions belong on Global Market Updates and, for U.S. market plumbing, US Market Updates. This page only names the physical and legal path.