雅思听力

🎧 Listening Transcript

Today in our environmental science lecture, we'll discuss urban green spaces. A recent study in Melbourne found that parks can reduce surrounding temperatures by up to 4 degrees Celsius during heatwaves. However, the cooling effect diminishes if the park is smaller than two hectares. Also, trees with broad leaves are more effective than those with narrow leaves. Interestingly, the study noted that water features, like ponds, contribute less to cooling than expected. Therefore, city planners should prioritize larger parks with dense tree canopies. Now, let's consider the implications for other cities...