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The original was posted on /r/science by /u/Wagamaga on 2024-01-13 11:18:35.

Original Title: Reflective materials and irrigated trees: study shows how to cool one of the world’s hottest cities by 4.5°C. Riyadh, the capital of Saudi Arabia, is one such city. Situated in the centre of a desert, it is one of the hottest cities in the world, with temperatures that can exceed 50°C during summer