recent research<\/a>, which has found that painting roofs white is effective at cooling cities at scale.<\/p>\nAs urban areas experience higher temperatures, the impact on residents’ health becomes increasingly concerning, with more people suffering from heat-related illnesses and fatalities. However, there is a gap in understanding how different building and street-level interventions can mitigate these temperatures on a large scale. This issue is particularly relevant for cities like London, where dense infrastructure can exacerbate the heat.<\/p>\n
New research addresses the gap by analysing the effects of nine different interventions on air temperatures in London during two hot days in the summer of 2018. Using a sophisticated climate model, the study found that cool roofs (i.e., those painted white or covered with a reflective coating) were the most effective, reducing temperatures by approximately 1.2\u00b0C. In contrast, green roofs and solar panels had less impact, and widespread use of air conditioning actually raised temperatures slightly. The findings highlight that while some current measures, like green roofs and solar panels, are insufficient at a large scale, strategic deployment of cool roofs could significantly alleviate urban heat. This research is crucial for guiding future urban planning and policy decisions to better protect residents from extreme heat.<\/p>\n
![\"\"](\"https:\/\/scienceblog.com\/wp-content\/uploads\/sites\/3\/2024\/07\/City.jpg\")
<\/a><\/p>\n