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Climate Friendly Method of Cooling

The rising temperatures due to global warming have intensified into an incomparable scorching heat, highlighting the consequences of violent weather that ignite global boiling’s arrival. Combined with an increase in urbanization and the rising middle class, this raises the demand for ACs and other cooling equipment. However, ACs contribute to substantial greenhouse gas emissions, both directly and indirectly. What else, therefore, can humanity do to overcome this?


Simultaneously trying to keep humans safe, food and vaccinations stable, and energy and data supplies running, the emissions doubled to nearly one gigaton between 1990 and 2021. The problem cannot be solved by simply turning these appliances off; almost 30% of the world’s population is exposed to life-threatening temperatures for at least 20 days a year. According to the United Nations-led Cool Coalition, heat waves alone lead to 12,000 deaths annually. It is clear that these appliances are a necessity for many; therefore, the challenges lie in using them without contributing more to greenhouse emissions.


A new method of temperature management has been engineered. This technique, dubbed "Ionocaloric Cooling," takes advantage of how energy is stored and released when a material changes phases—melting a material absorbs the head from its surroundings while solidifying it releases heat. To picture it more illustratively, imagine a material that gets larger when exposed to heat and smaller when the environment is cold. When pressure is applied to a system that utilizes Ionocaloric Cooling, its "ions" become more condensed and shrink; simultaneously, the heat in the environment makes them grow larger in tandem. This shifting back and forth between hot and cold, small and large, brings down the temperature in the room. Now, here is the catch: this system does not require the use of any electricity or refrigerant. Users can get three benefits by opting for this kind of AC: reduce their GWP (global warming potential), get more energy efficiency, and reduce their costs.

Ionocaloric Cooling could be the solution to lessening the greenhouse gas emissions created by the current system within common ACs. Implementation of this technology could help countries and individuals meet their climate change goals. As more people and governments become aware of the issue, it motivates innovation and responsible behavior among people.

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