Ammonia fuel offers great benefits but demands careful action, says study

Ammonia, a main component of many fertilizers, could play a key role in a carbon-free fuel system as a convenient way to transport and store clean hydrogen. The chemical, made of hydrogen and nitrogen (NH3), can also itself be burned as a zero-carbon fuel. However, new research led by Princeton University illustrates that even though it may not be a source of carbon pollution, ammonia's widespread use in the energy sector could pose a grave risk to the nitrogen cycle and climate without proper engineering precautions.

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