In just 16 years, Paris has undergone a remarkable transformation toward sustainability. The series of maps il

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In just 16 years, Paris has undergone a remarkable transformation toward sustainability. The series of maps illustrates a dramatic reduction in nitrogen dioxide (NO₂) levels—from dense red pollution zones in 2007 to mostly green in the present. This achievement reflects years of policy shifts, including car-free zones, expanded bike lanes, electric vehicle incentives, and greener urban planning.

The visual improvement isn’t just about aesthetics—it represents cleaner air, improved health outcomes, and a higher quality of life for millions. Paris now serves as a global example of how urban centers can prioritize the environment while still thriving economically. What was once one of Europe’s most polluted cities is now leading the way in urban climate action.

,GreenCities ,ParisTransformation ,UrbanSustainability

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