![Nikken Sekkei BioSkin](https://www.popsci.com/wp-content/uploads/2019/03/18/TEFRS3BRPUT2VZ4P6J7EUW33NQ.jpg?w=2000)
![Nikken Sekkei BioSkin](https://www.popsci.com/wp-content/uploads/2019/03/18/TEFRS3BRPUT2VZ4P6J7EUW33NQ.jpg?w=2000)
Modeled after traditional Japanese screens, BioSkin collects rainwater and feeds it through ceramic pipes that run over a building’s exterior. It deflects direct sunlight with solar panels, reducing interior temperatures by as much as 21°F. The system also generates power and lowers air-conditioning costs.