But all those machines, running for hours on end, gobble up vast quantities of electricity.
The gasesgradually leak, including after old air conditioning units or fridges are thrown away.
Ironically, then, cooling ourselves down to survive theclimate crisiscould actually make the problem far worse.
And they are coming up with some unusual ideas.
Barocal currently has six employees and has raised 1.5 million infunding.
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He adds that the process is a little bit like what happens inside liquid crystal displays.
He claims the system will be extremely efficient.
Another startup that aims to do away with refrigerant fluids is Dynamic Air Cooling, in Poland.
We created a process which is very similar to a mini tornado, he says.
The firm is targeting industrial refrigeration for food storage and transport.
Timur Sirman, co-founder and managing director, explains that his startups equipment relies on rotating magnets.
However, this can be solved by making a bigger fridge, he adds.
The cooling power scales linearly with the amount of material that you put inside, says Sirman.
Consider also the many homes around Europe that werenever designed to keep out excessive summer heat.
Its an easy solution to just go to a shop and get an air conditioner, says Miranda.
Thats a huge risk for those places electrical networks.
