Researchers have developed a biodegradable cellulose aerogel inspired by white beetles that reduces building cooling demands. The material reflects 95.8% of solar radiation and emits infrared heat, allowing surfaces to stay cooler than the surrounding air without using electricity. Simulations indicate the material could cut annual cooling energy use by roughly 43.5% in various climates. Because it is based on cellulose and metal-organic frameworks, it offers a low-carbon alternative to petroleum-based insulation like polystyrene foam.
