Is A Green Mobility Scooter Really Green? Transport is the second biggest source of greenhouse gas emissions. Are dockless electric scooters shared 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. Dott's https://www.mymobilityscooters.uk/brands/green-power