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Medellín's Green Secret: Cooling Cities Naturally
22 Jul
Summary
- Medellín planted nearly 900,000 trees to cool its streets.
- Green corridors reduced city temperatures by an average of 2°C.
- Localized cooling reached up to 5°C in shaded urban areas.
Medellín, Colombia, is implementing innovative nature-based solutions to combat rising urban temperatures. The city's Green Corridors program has seen the extensive planting of around 880,000 trees and over 2.5 million shrubs, primarily along roads and public spaces. This large-scale greening effort aims to naturally cool the city, which is prone to heat accumulation due to its valley location and urban development.
The initiative has demonstrably lowered temperatures, with studies indicating an average city-wide cooling of 2°C and localized cooling of up to 5°C in heavily shaded areas. Beyond temperature reduction, the project enhances air quality by trapping pollutants and increases biodiversity by creating habitats for wildlife.
This approach, recognized internationally, showcases how strategic urban forestry can significantly improve climate resilience and the overall quality of life for residents. Medellín's success offers a scalable model for other cities seeking sustainable cooling strategies.
