雅思听力

🎧 Listening Transcript

Today in our environmental science lecture, we're discussing urban green spaces. A recent study in Melbourne found that adding more parks and trees can reduce city temperatures by up to 4 degrees Celsius during heatwaves. However, the researchers noted that the placement is crucial. For maximum cooling effect, green areas should be connected, forming corridors rather than isolated pockets. Interestingly, they also discovered that the type of vegetation matters. Native trees with broad leaves provide better shade and evaporative cooling than non-native species. The study suggests that city planners should prioritize these corridors in new developments, especially near residential zones, to improve both comfort and air quality.