In a significant move towards sustainable public transportation, Citybus in Hong Kong launched its maiden voyage of a double-decker hydrogen bus on Sunday. The bus traversed through three toll tunnels, marking a milestone in the city's push for green transport solutions. Richard Hall, the managing director of Citybus, outlined the company's ambitious goal of eliminating diesel buses from its fleet by 2045, transitioning to a full fleet of zero-emission buses. He highlighted plans to introduce a substantial number of electric buses alongside at least five hydrogen buses to gather crucial data for future operational decisions. Hall also emphasized the importance of fare increases to support the sustainability of their operations and enable investments in new technologies. The public response to the hydrogen bus was largely positive, with passengers appreciating its quiet operation and eco-friendly features. However, there were initial safety concerns raised, particularly regarding the flammability of hydrogen. Despite this, passengers like Yau praised the bus for its reduced noise levels compared to traditional diesel buses. Citybus envisions a future where 70% of their fleet comprises hydrogen buses, positioning Hong Kong as a leader in adopting innovative energy solutions. The debut of the hydrogen bus attracted eager commuters, with some arriving early to experience the new mode of transportation. While some apprehensions exist, Citybus remains committed to enhancing its bus operations and contributing to a more sustainable and technologically advanced public transportation system.