How are cities around the world tackling air pollution?

With more cycling, better public transport and car bans, cities from Delhi to Zurich are using a range of initiatives to lower traffic pollution and improve health

Paris bans cars in many historic central districts at weekends, imposes odd-even bans on vehicles, makes public transport free during major pollution events and encourages car- and bike-sharing programmes. A long section of the Right Bank of the river Seine is now car-free and and a monthly ban on cars has come into force along the Champs-Elysées.

Reports that pollution levels in Delhi matched those in Beijing spurred the city to ban all new large diesel cars and SUVs with engines of more than 2,000CC and to phase out tens of thousands of diesel taxis. The city has experimented with alternately banning cars with odd and even number plates and is now encouraging Uber-style minibuses on demand. Other cities considering diesel bans are Dublin and Brussels.

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