The global agricultural sector is grappling with significant price volatility in the fertilizer market, largely driven by the industry's heavy dependence on fossil fuels. Natural gas serves as both a primary energy source and a critical chemical input for ammonia production, linking the cost of crop nutrients directly to energy market fluctuations.

The ongoing conflict in Iran has exacerbated these issues by disrupting trade routes. Approximately one-third of the world’s seaborne fertilizer trade passes through the Strait of Hormuz, which has been effectively closed to commercial traffic. According to the World Bank, this closure threatens to restrict access to essential fertilizers, particularly for developing nations. Furthermore, the conflict has resulted in the closure or damage of 31 ammonia plants in the Middle East, compounding the impact of 20 similar facilities damaged in Russia in recent years.

In April, the cost of urea, a widely used fertilizer, surged to over $850 per metric ton—an 80% increase compared to pre-conflict levels. While prices have since retreated from those peaks, CoBank analysts suggest that costs may remain elevated through at least 2028. Travis Frey, chief technology officer at Pivot Bio, described the current supply chain as "a lot more volatile than it’s ever been."

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In response to these challenges, companies like Pivot Bio and Switch Bioworks are developing alternatives that utilize genetically edited microbes to provide nitrogen to crops. These products do not require natural gas, potentially insulating farmers from energy-related price spikes. While current technology can replace approximately 25% of synthetic fertilizer usage, developers aim to increase that capacity significantly in the coming years.

Industry leaders emphasize that the current reliance on fossil-fuel-based fertilizers creates a precarious situation for food security. "We can’t keep doing it like this," said Tim Schnabel, CEO of Switch Bioworks. "There’s no way we can build a society where the basis of the food chain depends on fossil fuels."

Source: MIT Technology Review