In 2024, Stanford-linked researchers redesigned radiative cooling for vertical walls; the emitter ran 2.5°C below ambient and 8.9°C cooler than white paint

A team of researchers has unveiled a groundbreaking material designed to cool building walls effectively. This revolutionary emitter has the potential to lower surface temperatures significantly on scorching summer days. Notably, it operates passively, eliminating the need for external power, and could lead to reduced energy consumption for air conditioning. However, further advancements are necessary before it can be made widely available to the market.