The Transport for London (TfL) bus fleet in the UK capital has surpassed a significant milestone by incorporating over 2,000 zero-emission buses on its routes, a substantial increase from only 30 in 2016. Among these buses, 20 are hydrogen-fuelled, while the rest operate on battery power. The recent addition of the 2,000th zero-emission bus, a Wrightbus StreetDeck Electroliner, signifies a five-year partnership between TfL and Transport UK London Bus, aiming to enhance air quality and promote UK-based employment opportunities. The collaboration between TfL and its partners reflects a commitment to decarbonize the red bus network entirely, with ambitions to achieve a 100% zero-emission bus network by 2030. This aligns with Mayor Sadiq Khan's vision to make London a net-zero carbon city by the same year. Efforts are underway to engage with the government to explore innovative models that would streamline the procurement process for zero-emission buses, ensuring a consistent supply chain and facilitating nationwide environmental benefits. Director of Buses at TfL, Lorna Murphy, emphasizes the organization's dedication to transitioning to a fully zero-emission bus fleet, highlighting the positive impact on the UK economy and its significance in realizing Mayor Khan's carbon neutrality objectives for London. The strategic approach includes plans to cascade low-emission buses to other regions, contributing to broader environmental sustainability. With ongoing investments and collaborative ventures, TfL and its partners are paving the way for sustainable urban mobility solutions and setting the stage for London's future as a leading city in environmental consciousness and public transport innovation.