[BONUS: REPLAY] The Rise of Air Conditioning
English Learning for Curious Minds
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The Unexpected Consequences of Air Conditioning
20% of all electricity used within buildings global is used to power air conditioners. In countries with heavy fossil fuel usage, such as china, this electricity comes from burning fossil fuels,. This in turn causes global temperatures to increase, causing an increased usage of electricity air conditioning and it's a vicious cycle. Some of the chemicals that were used as coolents in air conditioners have done terrible damage to the ozone layer. Air conditioners are getting more environmentally friendly by using less damaging refrigerants and by being more energy efficient. But although the most efficient air conditioners end up costing less in the long term because they use less electricity, they are normally more expensive up fronts.
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