Effects of past ice ages more widespread than previously thought

Cold temperatures, prevalent during glacial periods, had a significant impact on past and modern unglaciated landscapes across much of North America, according to a recent study by University of Arkansas geologist Jill A. ...

Southern cities hit hard by storms face new crisis: No water

Southern cities slammed by winter storms that left millions without power for days have traded one crisis for another: Busted water pipes ruptured by record-low temperatures created shortages of clean drinking water, shut ...

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