Urban architecture and cloud cover from climate change have reduced sunlight exposure for city residents. Examining 1,353 US cities with light detection and ranging (LiDAR) data to map day length, sunshine, cloud cover and urban structures, this study finds that cloud cover and three-dimensional urban structures account for an equivalent reduction of 102 and 19 days of sunlight, respectively, with this reduction being expected to intensify.
- Shengbiao Wu
- Bin Chen
- Peng Gong