Clean air, safer streets and a stable climate are among the reasons doctors and environmental experts want fewer cars clogging our roads. Reduced dependence on fuel – especially when prices are high and most countries rely on imports – is another. Yet while some cities with world-class public transport are debating how to tackle the stubborn minority of journeys still made by car, others – particularly in the US – have become so dependent on driving that opting out is almost impossible. From connecting commuter suburbs to persuading royals to use buses, here are four expert-backed ways for tackling car culture. 1. Expand and improve public transport The shift from fuel-burning cars to electric ones greatly reduces planet-heating pollution but does not make streets safer. For that, people need reliable options for getting around.…