The 20th century is remembered fondly for the invention of radio, cinema, and television. However, it was also the era of environmentally toxic household appliances. As modern technology developed, so too did unintended environmental consequences, from the depletion of the ozone layer to the pollution of air in our cities.
How did early refrigerators, air conditioners, automobiles, and factories run—and how have they been adapted as our understanding of human influence on the environment has improved over time?
For a better understanding of these environmental issues within their historical context, check out this article describing the environmental impacts of some popular early 20th century inventions:
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