King County Metro Transit in Seattle is on a mission to achieve a zero-emission fleet by 2035, with current progress standing at 10-20%. Ben Thompson from the King County Auditor's Office highlighted the challenges faced in this transition, including the hilly terrain in Seattle that strains battery performance. The auditors emphasized concerns over the slow evolution of battery technology, with range and capacity limitations still prevalent. Despite these obstacles, King County Metro is exploring alternative options such as hydrogen to power buses, signaling a proactive approach to tackling environmental issues. The audit report also raised alarms about the reduced number of bus manufacturers in the U.S. and the overall technology lag in the industry. Recommendations included the need for contingency plans, enhanced communication, and faster implementation of infrastructure projects. This ambitious goal by King County Metro Transit aligns with the broader sustainability efforts and represents a positive step towards cleaner and greener public transportation in the region.