In Massachusetts, a recent MIT study reveals that switching maritime fuel from diesel to ammonia could worsen air quality and pose significant health risks unless new emissions regulations are implemented. While ammonia is nearly carbon-free, its combustion produces nitrous oxide (N2O) and nitrogen oxides (NOx), contributing to severe air pollution and health problems such as heart attacks, strokes, and asthma.
The study indicates that, without stronger regulations, ammonia-powered ships could result in 600,000 additional premature deaths annually. However, with improved regulations and cleaner engine technologies, this switch could lead to 66,000 fewer premature deaths than those caused by current maritime emissions. The findings underscore the need for a holistic approach to climate solutions, balancing decarbonization with public health considerations.
Anthony Wong, lead author and postdoc at MIT, emphasized the importance of designing policies alongside new technologies to address the full range of impacts. The research, published in Environmental Research Letters, aims to inform policymakers about the urgent need to update shipping emission regulations.
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Tags: ammonia, marine fuels, MIT
Category: Sustainable Marine Fuels
