Today in our environmental science lecture, we're discussing urban green spaces. A recent study in Melbourne found that parks and community gardens can reduce local temperatures by up to 4 degrees Celsius during heatwaves. The researchers also noted that residents living within 500 meters of a green space reported 20% lower stress levels. However, the key factor isn't just the size of the park, but the diversity of trees and plants. Areas with native species attracted more birds and insects, which improved the overall ecosystem health. The study recommends that city planners prioritize creating small, connected green corridors rather than one large park, as these are more accessible for daily use by residents.