Good morning, class. Today we'll discuss the impact of urban green spaces. Recent studies show that parks and community gardens can reduce city temperatures by up to two degrees Celsius. Additionally, they improve air quality by absorbing pollutants. However, the benefits extend beyond environment. For instance, residents near green areas report lower stress levels and increased physical activity. Interestingly, the study found that the presence of trees, rather than grass, had the strongest effect on mental well-being. Therefore, city planners should prioritize planting trees in densely populated neighborhoods.