Since 1908, swamp coolers deliver low-energy cooling as heat rises
Evaporative 'swamp coolers,' perfected in 1908 and still in use across the arid Southwest, offer a low-cost, low-energy cooling alternative where dry heat allows. As extreme heat and cooling-driven electricity demand climb, the technology's century-old efficiency argument is newly relevant—though rising humidity limits its reach.
Source: times-standard.com · thetimes-tribune.com