Study reveals: air conditioning may be WARMING our cities

Did you know that your darling air conditioning, That device that is so essential for keeping cool on hot days could be contributing to the heating of your city?

A recent European study brought this surprising discovery to light, revealing that the heat generated by air conditioning systems can raise the temperature of the urban atmosphere by more than 2ºC. Understand more below.

Effects of air conditioning

This research drew attention after French deputy Mathilde Panot shared these results in a public interview. The data is based on a 2020 study that analyzed several cities, including the iconic Paris.

Photo: EveryPixel/Reproduction

Temperature increases caused by air conditioning systems are directly related to the time of day and the characteristics of heat waves, especially their intensity, according to the study.

The researchers used the 2003 heat wave as a starting point for their predictions. This devastating heat wave led to the deaths of more than 14,000 people in France.

Based on this horrific event, the research team found that after nine days of a heat wave similar to that of 2003, consistent use of air conditioning during this period could increase air temperatures by up to 2.4°C.

But how does this happen? Well, the operation of air conditioners is similar to that of a heat pump, cooling an internal space while releasing hot air to the external environment. What is the result of this? An increase in heat in the urban atmosphere.

Another worrying factor is the energy consumption of these devices. They are notorious for being the biggest villains in terms of energy consumption, accounting for around 10% of global energy use. electricity. Not only that, but air conditioning systems also emit harmful gases, which contribute to global warming.

This is not the first study to highlight this problem. In 2014, research published in Journal of Geophysical Research: Atmospheres had already demonstrated that excess heat released by air conditioning systems could raise the ambient temperature by 1ºC to 1.5ºC.

So while we enjoy the relief of air conditioning in our homes and offices on sweltering days, it’s crucial to remember that our comfort choices have a direct impact on the urban climate and the planet as a whole.

Therefore, the search for more efficient and sustainable alternatives to keep us cool can be crucial to face the challenges of global warming.