Ammonia, a vital ingredient in fertilisers, has a significant impact on global food production. However, its production process currently heavily relies on fossil fuels, contributing to greenhouse gas emissions. By transitioning towards decarbonising ammonia production, particularly through the adoption of 'green' ammonia made from renewable hydrogen, the industry could play a crucial role in combating climate change. This shift not only offers the potential to reduce the carbon footprint of farming but also positions ammonia as a key player in achieving net-zero emissions as an energy carrier. Ammonia's production in Australia involves combining hydrogen and nitrogen, with the hydrogen primarily sourced from fossil fuels like natural gas. Efforts are underway to explore more sustainable alternatives, such as electrolysis using renewable sources like wind or solar energy to produce 'green hydrogen.' This renewable hydrogen can lead to the creation of ammonia with a significantly lower carbon footprint. The application of ammonia extends beyond fertilisers to include uses in explosives and, notably, as a potential energy carrier due to its hydrogen content. Its ease of conversion to a liquid form, unlike hydrogen, makes it a viable option for storage and transportation. Challenges like the high cost of renewable hydrogen production and safety concerns are being actively addressed through ongoing research and technological advancements. Organizations like CSIRO are at the forefront of research in this field, exploring efficient ammonia production methods, conversion processes, and the direct use of ammonia as an energy source. Their work on developing cost-effective electrolysers and ensuring safety regulations underscores the commitment towards leveraging ammonia as a sustainable energy carrier and addressing the challenges associated with its production and utilization.