Is A Green Mobility Scooter Really Green? Transport is the second-largest emitter of greenhouse gases. Are shared electric scooters dockless really green? Scooter startup companies like Tier, Dott, Voi and Circ all claim to be sustainable. are. We questioned them about their sustainability strategies. Here's what they said. Dott's warehouses https://www.mymobilityscooters.uk/brands/green-power