Arizona's Sun Corridor: White roofs can combat urban heat islands, but not without impact on regional hydroclimate

A team of researchers in Arizona has found that warming resulting from megapolitan expansion is seasonally dependent, with greatest warming occurring during summer and least during winter. Among the most practical ways to combat urbanization-induced warming -- the painting of building's roofs white -- was found to disrupt regional hydroclimate, highlighting the need for evaluation of tradeoffs associated with combating urban heat islands.

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