The article discusses the decarbonisation of Australia's bus fleet, emphasizing the importance of electrifying buses for air quality and climate reasons. With the transport sector responsible for a significant portion of the country's greenhouse gas emissions, transitioning to cleaner technologies is crucial. The focus is on comparing two main technologies: Battery Electric Buses (BEBs) and Hydrogen Fuel Cell Buses (FCEBs). It is argued that BEBs have clear advantages over FCEBs, being more cost-effective and emitting fewer greenhouse gases. The inefficiencies of FCEBs, even when running on green hydrogen, are highlighted, pointing to BEBs as the more viable option for reducing emissions. The article references failed hydrogen bus trials globally, contrasting them with the proven success of BEBs in driving decarbonisation. The conclusion calls for the swift adoption of BEBs in Australia to accelerate the transition to cleaner public transport and combat climate change effectively.