LifestyleSwamp Coolers Remain Key to Desert Cooling
Evaporative cooling, or swamp coolers, originated in the United States in the early 20th century, with Oscar Palmer’s 1908 Arizona system, offering a low-cost, energy-efficient way to cool dry air. By the 1930s they transformed heating in the Southwest and remain useful in arid regions, though they struggle in humid climates and central air conditioning became standard in the 1950s.
