Good idea: harvesting rain water for urban cooling https://www.euronews.com/2026/08/09/harvesting-rainwater-from-rooftops-could-cut-the-number-of-heatwave-days-and-reduce-air-co "Harvesting rainwater from roofs and using it strategically for cooling could provide a practical way to reduce both energy demand and urban temperatures.” Rooftop rainwater could be a secret weapon in tackling extreme heat, following Europe’s blistering summer. #rainwaterharvesting, #airconditioning, #urbancooling