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Episode 1545Mar 26, 2026

The humanitarian risks of a fertilizer shock

The war with Iran is disrupting the global flow of fertilizer, a vital element of the world’s food supply.

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A farmer applies fertilizer on cabbages at a farm in Jibia, Nigeria.
A farmer applies fertilizer on cabbages at a farm in Jibia, Nigeria.
Kola SulaimonK/AFP via Getty Images

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The effective closure of the Strait of Hormuz due to the war with Iran is having all sorts of effects on energy markets and the flow of other commodities—like fertilizer. Roughly one third of the world’s fertilizer passes through the narrow waterway in the Persian Gulf. On today’s show, the Council on Foreign Relations’ Michael Werz joins Kimberly to make the case that the ongoing disruption to the fertilizer trade is causing a chain reaction that could raise food prices and intensify humanitarian crises across the globe.

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The Team