Coffee-powered London buses make for highprofile PR

摘要

For years coffee has been energising our morning commute. Today, thanks to the power of collaboration, it is helping to fuel London buses too. Drinking over 20 million cups of coffee a day, Londoners produce a lot of waste from coffee - 200,000 tonnes of coffee grounds are produced in the capital alone each year. Where some might see an issue of waste, Arthur Kay saw potential.