Mississauga is embarking on a significant transformation of its public transit system to combat greenhouse gas emissions and modernize its fleet. With a commitment to reduce emissions by 40 percent by 2030 and 80 percent by 2050, compared to 1990 levels, the city is exploring innovative technologies such as wireless electric bus charging and hydrogen fuel cells. While the city's buses currently run on diesel, contributing significantly to emissions, there is a strong push towards adopting hybrid and zero-emission vehicles. The city's Climate Change Action Plan identifies transit as a major contributor to emissions from municipal operations. Efforts to transition to greener transit options have been ongoing, with the introduction of hybrid-electric buses. However, there has been a slower progress than anticipated in achieving the city's goals for hybrid-electric adoption. The recent focus has shifted towards battery electric buses (BEBs) and hydrogen fuel cell electric buses (FCEBs) as more sustainable alternatives. Mississauga's pilot project, supported by federal funding, aims to test the performance of FCEBs across seasons and validate their real-world range, particularly in winter conditions. The procurement of 10 New Flyer 40-foot FCEBs is a significant step towards greening the transit fleet. The decision between FCEBs and BEBs presents challenges related to cost, infrastructure, range, and environmental impact. While FCEBs offer benefits such as zero tailpipe emissions and quick refueling, there are concerns about the cost of hydrogen and infrastructure requirements. On the other hand, BEBs require clean electricity sources for charging and ongoing cost considerations. Mississauga is navigating the complexities of integrating these technologies into its transit system, considering factors like cold-weather range reductions, grid limitations, and future infrastructure plans. The city's approach reflects a strategic effort to balance environmental goals with practical considerations, highlighting the need for expertise and careful planning in transitioning towards a greener transit future.