Solution To China's Air Pollution Problem? Roof Sprinklers Could Clean Atmosphere Like 'Watering A Garden'

Shaocai Yu, a geoengineering researcher from Zhejiang and North Carolina State universities, has a novel idea for cleaning up China's polluted air. The technique involves positioning sprinklers on the roofs of tall buildings to spray water into the atmosphere to collect particulate matter, similar to how rain removes airborne dust. According to Nature World News, the idea came to Yu while he watched someone water a garden.