2024 Yes Heat-Resilient Schoolyards: Relations Between Temperature, Shade, and Physical Activity of Children During Recess https://pubmed.ncbi.nlm.nih.gov/36640783/ Lanza, Kevin North America Observational Students Elementary (K-5) Temperature Humidity Other Latino Climate change adaptation green schoolyards Low-income shade sail structures urban tree canopy In Austin, TX, children aged 8-10 spent less time in moderate to vigorous physical activity (MVPA) and more time in shade as temperatures rose, especially above 33°C. Green schoolyards with more tree canopy increased MVPA, highlighting benefits of shaded play during heat. 2023