When Hiro Iwanaga co-founded TalusAg, a company to develop local production of green ammonia for fertilisers, food security in sub-Saharan Africa was top of mind. There, almost all fertiliser is imported so it’s highly vulnerable to any disruption in supply chains and can cost twice as much as it does in the U.S, where his company is based. Hardly surprising, then, that farmers apply a fraction of what’s used by their global peers, contributing (alongside soil degradation) to low crop yields.

While TalusAg’s modular system means fertiliser can be made where it’s needed, it is also taking the carbon out of ammonia production. Worldwide, the traditional and energy-intense manufacture of ammonia, using hydrogen from fossil gas, accounts for around 2% of carbon emissions.

 

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