White Roofs Prove Most Effective for Cooling Urban Heat

University College London study finds reflective roofs can reduce city temperatures by up to 2 degrees Celsius, outperforming green roofs and other methods.

Cool roofs can lower outdoor temperatures by an average of 1.2 degrees Celsius, with peak reductions of up to 2 degrees.
Green roofs offer minimal cooling benefits but contribute to biodiversity and water management.
Air conditioning can increase outdoor temperatures in dense areas, highlighting the need for passive cooling solutions.
Reflective roofs are easier and cheaper to install and maintain compared to green roofs.
Urban planners are exploring a mix of cooling strategies to combat rising city temperatures.