White roofs may successfully cool cities, computer model demonstrates

Painting the roofs of buildings white has the potential to significantly cool cities and mitigate some impacts of global warming, a new study indicates. The research, which is the first computer modeling study to simulate the impacts of white roofs on urban areas worldwide, suggests there may be merit to an idea advanced by US Energy Secretary Steven Chu and other policymakers that white roofs can be an important tool to help society adjust to climate change.

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