Inside the fight for cleaner air
AT FIRST GLANCE, LONDON’S Oxford Street looks like any other pristine urban corridor. Trees bloom. Taxis honk. Shoppers flock to stores like Starbucks, Uniqlo and the Gap. Of all the words you could use to describe this destination, dangerous would be low on the list.
But the air that flows through Oxford Street is far from benign. Over time, it has become saturated with nitrogen dioxide, a pollutant that
