Is A Green Mobility Scooter Really Green? Transport is the second-largest contributor of greenhouse gas emissions. Are shared electric scooters dockless really green? Scooter startups like Tier, Dott, Voi and Circ all claim to be sustainable. are. We asked them about their sustainability plan. Here's how they did. Dott's warehouses https://www.mymobilityscooters.uk/brands/green-power