Buildings could soon 'sweat' like elephants to stay cool

Researchers are exploring innovative ways to combat rising urban temperatures, drawing inspiration from the natural world. A team from the University of Pennsylvania has developed a novel cement plate designed to passively cool buildings, mimicking the cooling mechanism of an African elephant's wrinkled skin.

This new material functions by absorbing water and then allowing it to evaporate slowly. This process creates a "skin-like layer" on the building's surface, which significantly lowers its temperature without the need for energy-intensive air conditioning systems. The more effectively the material can "sweat" or evaporate water, the less electricity the building will consume for cooling.

The development holds promise for making cities more resilient to heatwaves. By utilizing passive cooling techniques, this technology could reduce the reliance on noisy and power-hungry air conditioners, offering a more sustainable and efficient approach to managing building temperatures in increasingly hot climates. Further testing will determine the full potential of this "elephant skin" technology in urban environments.