The San Bernardino County Transit Authority has unveiled the Zero Emission Multiple Unit (ZEMU), the first zero-emission passenger train in North America. Costing $20 million, the train is set to operate on the Arrow Line, a 9-mile transit route between downtown San Bernardino and the University of Redlands. The introduction of ZEMU represents a significant milestone in clean energy transportation, with the train using a hybrid hydrogen and battery technology that emits only water vapor as its propulsion system. The Arrow Line, launched in October 2022, has seen a notable increase in weekday and weekend ridership, connecting passengers to Los Angeles' Union Station. ZEMU's arrival is expected to further enhance the sustainable transportation options in the region. The train's construction and testing process, which began in Switzerland, emphasizes the importance of innovative and environmentally-friendly transport solutions. With a focus on reducing carbon emissions and improving air quality, ZEMU represents a crucial step towards a greener future. The San Bernardino region, known for its poor air quality, welcomes this initiative as a way to combat environmental challenges. The SBCTA's commitment to investing in clean energy and sustainable infrastructure demonstrates a proactive approach to addressing transportation and environmental issues. The successful integration of ZEMU into the Arrow Line highlights the potential for future expansion of zero-emission vehicles in the public transit system. The ultimate goal is to transition Metrolink's entire fleet to zero-emission trains, showcasing a dedication to sustainable urban development and improved air quality for residents of San Bernardino and beyond.