Is A Green Mobility Scooter Really Green? Transport is the second-largest contributor of greenhouse gas emissions. Are dockless electric scooters shared really green? Scooter startup companies like Tier, Dott, Voi and Circ all say they are. We inquired about their sustainability strategy. Here's what they had to say. Dott's warehouses https://www.mymobilityscooters.uk/brands/green-power