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'Cool roofs' substantially reduce temperatures during a heat wave, according to new study

A white roof, or 'cool roof' in Las Vegas. New studies prove that such roofs can drastically reduce temperatures during a heat wave. Credit: Wikipedia.

These graphics show the dramatic distance cool roofs can provide. Guangzhou is the outlined area in the center of each figure; the results of the white roofs are depicted in the bottom left and right images. Credit: Berkele Lab

These graphics show the dramatic distance cool roofs can provide. Guangzhou is the outlined area in the center of each figure; the results of the white roofs are depicted in the bottom left and right images. Credit: Berkele Lab

These graphics show the dramatic distance cool roofs can provide. Guangzhou is the outlined area in the center of each figure; the results of the white roofs are depicted in the bottom left and right images. Credit: Berkele Lab