The best way to reduce emissions and traffic congestion is to reduce vans. For every 2 locker locations, one van is reduced. In London, where we plan to deploy 5,000 lockers, it means a reduction of 5,000 vans. Each van produces 15,000 kg of CO2 per year, so the reduction of 5,000 vans results in 75 million kg of CO2 taken out of the air.