Totally agree. So many cities are committing the grave mistake of shutting down trolleybus systems. Look at Montreal for instance, where I live, and the large amount of old diesel buses really makes the air choke and making downtown very noisy. On a related note, I was once in a car going southbound on the A-15 towards Montreal and we were stuck in traffic for an hour, and unknowingly, we were breathing fumes from other cars and I actually was very close to fainting, which shows how bad the air in Montreal really is. The STM is also testing fast-charging battery buses, but they are in the garage 90% of the time despite them being very reliable, in which their electric bus program really looks like a scam to me as every time I go on the 36 Monk, there aren't any electric buses there. The new hybrids are excellent and emit so much less fumes and noise, but unfortunately, there aren't enough to cover the whole city and that they bought them too late and made the mistake previously of buying too much diesel buses to begin with.