December 1, 2023
Hydrogen buses are more environmentally friendly than diesel buses as only water is emitted during the operation.
Hong Kong's first-ever double-decker hydrogen bus is seen as Chief Executive John Lee Ka-chiu (eighth left, front) and officials pose for a group photo during a launching ceremony at Citybus West Kowloon Depot in Sham Shui Po on Nov 30, 2023. PHOTO: CHINA DAILY