Green Ammonia's Toxic Tide: The Shipping Nightmare Threatening AI's Clean Power?

The world is rapidly embracing green ammonia as a critical energy carrier to decarbonize heavy industry, shipping, and increasingly, to power the energy-hungry infrastructure of artificial intelligence. Yet, a hidden, colossal challenge lies in its global transport: the sheer scale of new, safe infrastructure required to move this highly toxic compound. The promise of green ammonia as a carbon-free fuel and hydrogen carrier is undeniable. It's set to play a pivotal role in the net-zero transition, with the global green ammonia market projected to surge from US$1.75 billion in 2025 to US$221.6 billion by 2035, growing at a staggering CAGR of 62.3%. This growth is driven by demand from sustainable fertilizers, maritime fuel, and its potential as a hydrogen storage solution for power generation, including data centers. AI's soaring energy demands—with data center electricity use soaring 17% in 2025 and AI-focused data centers climbing even faster—are pushing operators to seek scalable, reliable, low-emissions power solutions, making green ammonia an attractive option for 'behind-the-meter' data centers.

However, ammonia is a highly toxic, corrosive, and flammable gas, requiring stringent safety protocols and specialized handling equipment on ships and at ports. While ammonia has been transported globally for decades, the scale-up for energy applications, particularly to meet AI's accelerating demand for green power, introduces unprecedented safety and infrastructure hurdles. Researchers at Oxford University estimate that the necessary infrastructure to transition global shipping to green ammonia by 2050 could cost around US$2 trillion, with the vast majority needed for supply infrastructure. This includes long-distance shipping, specialized storage facilities, and extensive bunkering infrastructure at ports globally, which are currently lacking.

Existing international rules for ammonia as a marine fuel are still under development, with interim guidelines from the International Maritime Organization (IMO) adopted in 2024, and binding amendments to the IGF Code expected. Even with these guidelines, the transition requires a