Is A Green Mobility Scooter Really Green? The transportation sector is the second-largest emitter of greenhouse gases. But are shared dockless electric scooters really green? Scooter startups like Tier, Dott, Voi and Circ all claim to be sustainable. are. We questioned them about their sustainability strategy. Here's how they fared. https://www.mymobilityscooters.uk/brands/green-power