Halifax is embarking on a pilot project to convert four city buses to be powered by a dual-fuel system of hydrogen and diesel in an effort to assess the viability of this technology for expanding its transit fleet. The initiative, which received funding approval from the regional council, is a cost-effective approach compared to pure hydrogen fuel cell buses. The project aims to significantly reduce carbon emissions by 69 to 74% and decrease diesel usage by 70%. Although the dual-fuel system is not perfect, it offers a practical solution without requiring major engine modifications. The move towards hydrogen-diesel buses comes shortly after Halifax introduced 60 electric buses, highlighting the city's commitment to sustainable transportation solutions. The pilot project is part of Halifax's goal to integrate 200 zero-emission buses into the 360-bus fleet by 2028, with considerations for alternative options beyond electric buses due to their limitations. One of the advantages of the dual-fuel system is its environmental impact, as it allows the engine to run cleanly, reducing the need for certain filters and extending the engine's lifespan. The project will serve as a learning opportunity for the municipality, with plans to share insights with industry and community partners. Additionally, the initiative aligns with the provincial government's efforts to develop a green hydrogen industry in Nova Scotia, promoting a sustainable transportation ecosystem. The project not only focuses on environmental benefits but also addresses the economic aspect by offering a cost-effective solution that could potentially be scaled up in the future. The dual-fuel system's performance and outcomes will inform future decisions in Halifax's transit planning and contribute to broader initiatives in the transportation sector, setting a positive example for other regions to follow.