New tech can make air-conditioning less harmful to the planet
The key is energy efficiency
In many parts of the world, the cool blast of an air-conditioner on a hot day is nowadays seen as a luxury rather than a necessity. Climate change is tipping the balance. Average global temperatures are now roughly 1.2°C higher than they were before the Industrial Revolution: by mid-century they are projected to be about 2°C higher. Air-conditioning (AC) use, correspondingly, is set to soar. By one estimate, the number of room-cooling ACs could nearly triple between now and 2050.
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This article appeared in the Science & technology section of the print edition under the headline “Cold comfort”
From the September 7th 2024 edition
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Deforestation is costing Brazilian farmers millions
Without trees to circulate moisture, the land is getting hotter and drier
Robots can learn new actions faster thanks to AI techniques
They could soon show their moves in settings from car factories to care homes
Scientists are learning why ultra-processed foods are bad for you
A mystery is finally being solved
Scientific publishers are producing more papers than ever
Concerns about some of their business models are building
The two types of human laugh
One is caused by tickling; the other by everything else
Scientists are building a catalogue of every type of cell in our bodies
It has thus far shed light on everything from organ formation to the causes of inflammation