Is A Green Mobility Scooter Really Green? Transport is the second-largest source of greenhouse gas emissions. But are shared dockless electric scooters really green? All scooter startups, including Tier, Dott and Circ claim to be. We questioned them about their sustainability strategies. Here's how they did. Dott's warehouses are powered https://www.mymobilityscooters.uk/brands/green-power