Breaking History: The Invention That Changed Everything

Barry Weiss discusses the transformative impact of air conditioning (AC) on American life, highlighting its role in enhancing comfort during hot weather and enabling factories to operate year-round. AC has influenced migration patterns and demographics, allowing Americans to thrive in extreme climates. In a segment from "Breaking History," Eli Lake and Salvatore Basel, author of "Cool," explore the historical significance of air conditioning, noting its implications for architecture, urban development, labor, geopolitics, and human biology. Basel shares how the introduction of air conditioning changed family gatherings.

The origins of modern air conditioning trace back to early refrigeration inventors, including a Florida doctor in the 1850s and Willis Carrier, who developed a groundbreaking refrigeration system in 1902 to solve humidity issues in a printing plant. Carrier's invention, initially unrecognized, gained traction in factories, allowing continuous operation and leading to "comfort cooling," which faced initial resistance. The challenges factories faced during peak industrialization, where extreme heat and humidity hindered manufacturing, are noted, along with Henry Ford's early adoption of factory-wide air conditioning, which positively impacted employee attendance and productivity.

The acceptance of cooling technology evolved slowly, with the mid-19th century introducing ice boxes and the New York Stock Exchange installing a cooling system in 1903. The movie industry played a crucial role in popularizing air conditioning, as theaters struggled with low attendance due to uncomfortable conditions. The installation of Carrier's system in the Rivoli Theater in 1925 marked a turning point, leading to widespread adoption in theaters across the United States.

Europe's adoption of air conditioning was slow, gaining popularity in recent decades as it provided comfort during summer, raising public expectations for comfort across service industries. Retailers had to implement air conditioning to meet customer demands, leading to higher satisfaction and profits. The first home air conditioner, introduced by Frigidaire in 1929, was cumbersome and costly. Despite initial struggles during the Great Depression, air conditioning technology evolved, becoming smaller and more affordable, with window units popularizing home air conditioning in the late 1940s.

By the 1950s, owning a window air conditioner became a status symbol, reflecting financial capability and family comfort. Home ownership of air conditioning skyrocketed from 0.25% in 1940 to about 20% by 1960, and over 90% by 1990. Willis Carrier played a pivotal role in this transformation, focusing on making air conditioning widespread and impacting various sectors, including transportation and residential living. Carrier's legacy is profound, as his innovations expanded air conditioning beyond industrial use to everyday life, though he remains relatively unrecognized.

Today, there is growing pushback against air conditioning due to environmental concerns, prompting a more cautious approach to its use. Current systems, based on refrigeration compressors, have been in place for 120 years, but research into climate-friendly and energy-efficient alternatives is underway. Innovative methods, such as using water and acrylic membranes to extract moisture from the air, have been explored, though not all have succeeded. The discussion emphasizes the importance of acknowledging Carrier's contributions to modern living and the ongoing evolution of air conditioning technology.