How can cities reduce air pollution?

What are some effective ways cities can reduce air pollution?

Cities can implement stricter emissions regulations, promote public transport, and increase green spaces.

How does increasing green spaces help with air quality?

Green spaces absorb CO2 and other pollutants, providing cleaner air and improving overall urban health.

What role does public transportation play in this?

Public transportation reduces the number of vehicles on the road, leading to lower emissions and less traffic congestion.

Are there any cities that have successfully reduced air pollution?

Yes, cities like Los Angeles and Beijing have implemented measures that significantly improved their air quality.