UN Secretary-General António Guterres has issued a formal warning of a global food emergency, citing the prolonged closure of the Strait of Hormuz as the proximate cause. The closure, in place since the US-Israeli bombing campaign against Iran began in April, has choked the movement of oil, gas and – critically – fertiliser through one of the world’s most concentrated maritime chokepoints.
Roughly one-third of global fertiliser shipments transit Hormuz. Nitrogen and phosphate fertiliser prices have risen 20 to 40 percent in recent weeks, reflecting both supply constraints and the cost of insurance and rerouting. The UN Food and Agriculture Organization has placed the operational window at three months. Beyond that, planting decisions for 2026 and 2027 begin to lock in, and the disruption transmits from price shock into actual yield collapse.
What Guterres Has Done
The Secretary-General has appointed a dedicated envoy to lead the UN response, including the proposal of a humanitarian corridor through the Strait specifically to allow the passage of fertiliser and other essential goods. The corridor proposal has stalled, principally because the parties to the conflict – the United States, Israel and Iran – have not agreed to the terms under which it would operate. Iran has its own offer on the table to reopen the Strait fully in exchange for the lifting of the US naval blockade. Washington has, to date, rejected it.
Who Pays
The countries that pay first are those that import the largest share of their staple grain and fertiliser inputs and have the thinnest currency reserves to absorb the price spike – South Asia, the Sahel, the Horn of Africa, parts of South-East Asia. The countries that imposed the conditions producing the crisis are those least exposed to it. The pattern is, by now, familiar.
The Three-Month Clock
The FAO timeline does not move. Planting in the Northern Hemisphere does not wait for diplomatic outcomes. If the corridor does not open, or if the broader closure is not resolved, the calculus shifts from temporary shortage to structural deficit. The hunger crisis, when it arrives, will be a policy outcome, not an act of nature.
