Today in our environmental science lecture, we'll discuss urban green spaces. Recent studies show that parks in cities can reduce local temperatures by up to 5 degrees Celsius during heatwaves. This cooling effect comes from shade and water evaporation from plants. However, the benefits depend on park design. For example, large trees are more effective than grass alone. Additionally, green spaces improve air quality by absorbing pollutants like nitrogen dioxide. But researchers warn that poorly maintained parks might attract pests, so regular upkeep is essential. Overall, investing in urban parks is a cost-effective strategy for climate adaptation.