We have a few weeks to prevent what will likely be a massive humanitarian crisis
In Paris this week, a senior United Nations official delivered a warning that carries the weight of history: a deliberate blockade of the Strait of Hormuz, imposed by Iran in response to U.S.-Israeli military action, is quietly severing the thread that connects fertilizer to farmland to food. With planting seasons closing across Africa and beyond, the world has weeks — not months — to decide whether political will can outpace humanitarian catastrophe. The mechanism to act exists; what is absent, for now, is the collective resolve to use it.
- Iran's blockade of the Strait of Hormuz has cut off roughly one-third of global fertilizer supplies, and every passing week brings the next planting season closer to ruin.
- The UN estimates 45 million additional people could be pushed into hunger — a number that lands on top of tens of millions already food-insecure worldwide.
- A UN task force leader says just five fertilizer vessels a day through the strait could prevent the worst outcomes, and a working mechanism could be operational within seven days — yet political commitment from the U.S., Iran, and Gulf producers remains elusive.
- Even an immediate reopening would require three to four months for fertilizer flows to normalize, meaning the cost of further delay is measured not in diplomacy but in empty harvests and empty plates.
A United Nations official delivered an urgent warning from Paris this week: the world may have only weeks to prevent a hunger catastrophe affecting tens of millions of people. The cause is not drought or disease — it is a deliberate blockade of the Strait of Hormuz, through which roughly a third of the planet's fertilizer normally passes. Iran imposed the blockade in retaliation for a U.S.-Israeli military campaign launched in late February, and the consequences follow a brutal logic: no fertilizer means no planting, no planting means no harvest, no harvest means starvation.
Jorge Moreira da Silva, who leads the UN Office for Project Services and heads a task force formed specifically to address the crisis, has spent weeks in intensive diplomacy — meeting with more than 100 countries in search of a workable solution. The ask is modest: just five vessels a day carrying fertilizer, ammonia, sulphur, and urea through the strait. A mechanism to make this happen could be operational within seven days, he said. Yet it has stalled against what he describes as a shortage of political will among the key parties — the United States, Iran, and Gulf fertilizer producers.
The clock is unforgiving. Planting seasons across Africa and other vulnerable regions are closing within weeks. A delay now means a lost agricultural cycle and, months later, acute food shortages. Even if the strait reopened immediately, experts warn it would take three to four months for supply chains to recover — making urgent action not merely important but irreplaceable.
While oil and gas disruptions have commanded global headlines, the fertilizer crisis has drawn far less attention — a blind spot with grave consequences. Prices have already surged, and the poorest nations in Africa and Asia stand to suffer most. Moreira da Silva put the choice plainly: act now to prevent the crisis, or spend years managing its aftermath. The pathway exists. The decision does not yet.
A United Nations official sat down in Paris this week with an urgent message: the world has perhaps a few weeks to avert a catastrophe that could push tens of millions of people into hunger. The crisis is not a natural disaster or a disease. It is a deliberate blockade of the Strait of Hormuz, the narrow waterway between Iran and Oman through which roughly a third of the planet's fertilizer normally flows.
In retaliation for a military campaign launched by the United States and Israel on February 28th, Iran has choked off this vital passage for months. The consequences ripple outward with brutal simplicity: without fertilizer, farmers cannot plant. Without planting, there is no harvest. Without harvest, people starve. The UN estimates that if the blockade continues, an additional 45 million people could be forced into hunger and starvation—a figure that sits alongside the tens of millions already facing food insecurity globally.
Jorge Moreira da Silva, who leads the UN Office for Project Services and heads a task force created in March specifically to address this crisis, has spent weeks in a grinding diplomatic effort. He has met with more than 100 countries, trying to build consensus around a mechanism that would allow fertilizer shipments to resume. The math is simple: just five vessels a day carrying fertilizer and related materials like ammonia, sulphur, and urea could prevent the worst outcomes. Yet even this modest request has stalled against what Moreira da Silva calls a lack of political will.
The urgency is not abstract. Planting seasons in Africa and other regions are ending within weeks. Once they close, farmers cannot plant until the next cycle—meaning any delay now translates directly into lost crops and, eventually, empty plates. The UN could have a system in place to move ships through the strait within seven days, Moreira da Silva said. But even if the waterway reopened tomorrow, it would take three to four months for fertilizer flows to return to normal levels. Time, in other words, is the enemy.
While global attention has focused on oil and gas disruptions, the fertilizer crisis has received less scrutiny—a dangerous blind spot. Fertilizer prices have already surged dramatically, and experts warn that this will soon translate into reduced agricultural productivity and soaring food prices. The poorest nations, particularly in Africa and Asia, will suffer most acutely. The United States, Iran, and the Gulf states—key fertilizer producers themselves—have not yet fully committed to the UN mechanism, even as the window for action narrows.
Moreira da Silva framed the choice starkly: act now to prevent the crisis, or spend years managing its humanitarian aftermath through emergency aid. The mechanism exists. The pathway is clear. What remains is the decision to use it. Without that decision, made quickly, the world will face not a theoretical food security problem but a concrete one—millions of people with nothing to eat, and a global food system struggling to respond.
Citas Notables
We have a few weeks ahead of us to prevent what will likely be a massive humanitarian crisis— Jorge Moreira da Silva, UN Office for Project Services
It's just a matter of time. If we don't stop the origin of the crisis soon, we will have to deal with the consequences through humanitarian aid.— Jorge Moreira da Silva
La Conversación del Hearth Otra perspectiva de la historia
Why is Iran blocking fertilizer specifically? Why not just oil and gas?
The blockade affects all trade through the strait, but fertilizer is the most time-sensitive. Oil and gas markets can adjust over months. Planting seasons end in weeks. That's the vulnerability Iran is exploiting.
Could farmers just use less fertilizer, or switch to other sources?
Not realistically. Fertilizer is already expensive and becoming more so. Farmers in poor countries can't absorb those costs. And there's no quick alternative supply—most fertilizer comes through that strait.
The UN says it could set up the mechanism in seven days. So what's actually stopping this?
Political will. The U.S. and Iran are at odds. Gulf producers worry about their own leverage. Everyone's waiting for someone else to move first.
If the strait reopened tomorrow, wouldn't that solve it?
Not immediately. It would take three to four months to restore normal flows. That's the trap—even urgent action now won't prevent some damage.
Who suffers most if this doesn't get resolved?
Farmers in Africa and Asia, and the poorest people everywhere. They have the least ability to absorb higher food prices or crop failures. It's a crisis that hits the vulnerable hardest.