Nature and EnvironmentFrom filthy air in Victorian London to cleaner air todayTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoNature and Environment11/05/2020November 5, 2020Air pollution is a massive problem in many cities all over the world. Charles Dickens wrote about London's "dirty air" 150 years ago. But things have changed. How has the British capital achieved such an improvement in air quality?https://p.dw.com/p/3kqWuAdvertisement