Today in our environmental science lecture, we'll discuss urban heat islands. Cities tend to be warmer than surrounding rural areas due to concrete and asphalt absorbing heat. However, one effective mitigation strategy is increasing green spaces. A study in Melbourne showed that adding parks and street trees can reduce local temperatures by up to 4 degrees Celsius. Interestingly, the placement of green spaces matters more than their total area. For example, small distributed gardens are more effective than one large park. This is because they create cooling corridors that allow air to circulate. Additionally, green roofs on buildings can help, but they are less impactful than ground-level vegetation.
❓ Según la conferencia, ¿qué reveló el estudio en Melbourne sobre los espacios verdes y el calor urbano?
A. A. Los parques grandes reducen las temperaturas más que los jardines pequeños.
B. B. La ubicación de los espacios verdes es más importante que su tamaño total
C. C. Los techos verdes son el método de enfriamiento más efectivo
D. D. El concreto absorbe menos calor que el asfalto
✅ 正确答案
B. The location of green spaces is more important than their total size