Is A Green Mobility Scooter Really Green? The transport sector is the second-largest source of greenhouse gas emissions. Are shared electric scooters dockless really green? Scooter startup companies like Tier, Dott, Voi and Circ all claim to be sustainable. are. We inquired about their sustainability strategies. Here's how they fared. https://www.mymobilityscooters.uk/brands/green-power