New Eco-friendly Air-conditioners Use Water as Cooling Agent

Air conditioners guzzle energy – it is said an average air conditioner consumes 20 times more energy than a ceiling fan. Too much use of these cooling machines, therefore can deal a hammer blow to the world’s climate goals. To tackle the issue, a clutch of researchers from National University of Singapore (NUS) have built a new type of air conditioner that uses water as a cooling technology instead of