Global Cities Achieve Remarkable Air Pollution Reductions of 20-45 Percent
Key Takeaways
- Nineteen global cities reduced two pollutants by over 20% since 2010.
- London, San Francisco, and Beijing are among the cities achieving these reductions.
- Cycle lanes, electric-vehicle uptake, and restrictions like ULEZ drove improvements.
Global Cities Cut Pollution
Nineteen global cities have achieved remarkable reductions in air pollution by more than 20% since 2010.
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Beijing and Warsaw reduced PM2.5 by more than 45%, while Amsterdam and Rotterdam cut NO2 by more than 40%.
The analysis looked at cities in the C40 and Breathe Cities networks.
Interventions such as cycle lanes, electric cars, and vehicle restrictions drove improvements.
Warsaw's Transformation
Warsaw cut PM2.5 by 46%, the second biggest decrease.
A ban on burning coal for heating households was introduced.
The bike path network expanded significantly.
Low- and zero-emission buses now make up 40% of the fleet.
Health and Economic Benefits
Burning fossil fuels releases toxic gas and harmful particles that are major threats to human health.
“Nineteen cities around the world have achieved “remarkable reductions” in air pollution, cutting levels of two harmful pollutants by more than 20% since 2010”
The economic benefits of improving air quality can be substantial.
Scientists and policymakers agree reversing urban pollution is critical.
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