Heat waves have swept through much of the U.S. already this summer, breaking temperature records, straining power grids and buckling roads.
And a long-lasting heat dome is set to bake much of the country’s midsection in triple-digit temperatures in the coming days, according to AccuWeather.
And when the heat is on, so are the air conditioners. In late June, when parts of the country were under a heat dome, searches for the term “precooling” spiked on Google.
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