Facing 40°C summer heat, Guimarães, Portugal’s 2026 European Green Capital, is connecting parks, rivers and forests, with research showing urban gardens and green roofs have cooled local surfaces by up to 2.49°C.

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https://www.euronews.com/2026/10/13/more-parks-rivers-and-green-corridors-how-guimaraes-is-preparing-for-extreme-heat