Heatwave: Faced with heat islands, how can we cool cities?
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In cities, roofs represent 19% to 25% of free horizontal surfaces. AURELIE AUDUREAU / LE PARISIEN/MAXPPP
On average, French cities are up to five degrees warmer than their surrounding rural areas. As heat waves intensify, communities and urban planners are seeking solutions to preserve the quality of urban life while balancing regulatory and economic constraints.
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I subscribeIn summer, French cities turn into veritable boiling points. On average, they are up to 5°C warmer than surrounding rural areas, according to a study by the Banque de France on urban heat islands. On certain surfaces such as asphalt, concrete, or zinc, the difference can climb to +10°C or even +15°C during a heatwave.
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