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 in city centers can reduce local temperatures by up to 3 degrees Celsius during summer heatwaves. Interestingly, the cooling effect was strongest within 100 meters of the green area, but it diminished quickly beyond 500 meters. The study also noted that vertical gardens on buildings had a smaller impact than ground-level parks, because they often lack water. However, the researchers emphasized that even small green spaces, like street planters, contribute to mental well-being, though they don't significantly affect temperature.