which can include grass, gardens, mulch and trees. Between 2022 and 2023, California alone granted more than $121 million for these efforts. Experts say trees are one of the best ways to cool things down — they lower air and surface temperatures, and research has found that...
The Beijing Municipal Education Commission suggested that kindergartens, primary and secondary schools and vocational middle schools should reduce outdoor physical education classes and outdoor activities. "As the heat goes up, so does the threat of outdoor electrical equipment fires," said a property ...
it carries heat away from your skin. But when the air is hot and moist, sweat is slower to evaporate and your body struggles to stay cool, especially when you're active. The more you sweat, the more you deplete your body's fluids and essential minerals (electrolytes), ...
If the clustering radius is only a few pixels, there would be a small visual difference in the rendering. A larger radius groups more points into each cluster, and improves the performance of the heatmap. Next steps Learn more about the classes and methods used in this article: ...
Figure 4. Selected specific heat capacity data for different classes of neat cement, plotted as a function of a) extent of hydration, b) degree of pore fluid saturation, c) density and d) mixing water-to-cement mass ratio (w:c). Plotted data include ASTM CEM I cement (diamonds – Kim...
What is the air temperature difference between certain urban areas and the rural surroundings in years of extreme summer heat conditions versus a non-extreme year? Are these potential differences significant? To what extent does the potential intensity of the UHI differ when diversely-structured areas...
In wet climates, the urban daytime Tw is 0.17 ± 0.14 degrees Celsius (mean ± 1 standard deviation) higher than rural Tw in the summer, primarily because of a weaker dynamic mixing in urban air. This Tw increment is small, but because of the high background Tw in wet ...
School days were cut short in schools where district officials felt they couldn’t provide a safe learning environment. Air conditioning systems are also checked at the start of summer and again just before classes start. Teachers and staff are trained to...
Trees can help mitigate urban heat, but more detailed understanding of cooling effects of green infrastructure are needed to guide management decisions and deploy trees as effective and equitable climate adaptation infrastructure. We investigated how urban trees affect summer air temperature along sidewalks...
Lake ecosystems, and the organisms that live within them, are vulnerable to temperature change1–5, including the increased occurrence of thermal extremes6. However, very little is known about lake heatwaves—periods of extreme warm lake surface water te