Today, in our environmental science lecture, we'll discuss urban heat islands. As you know, 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, such as parks and green roofs. A recent study in Melbourne found that adding tree canopy can reduce surface temperatures by up to 8 degrees Celsius. But, interestingly, the study also noted that the cooling effect is strongest within 100 meters of the green area. Therefore, planners should distribute small parks throughout neighborhoods rather than concentrating them in one large central park.
❓ 講義によると、メルボルンの研究は緑地の冷却効果について何を見出したのでしょうか？
A. A. 樹冠は、どこでも気温を摂氏8度低下させることができます。
B. B. 冷却効果は緑地から100メートル以内で最も顕著である。
C. C. 大規模な中央公園は、小規模に分散した公園よりも効果的である。
D. D. 緑の屋根は、樹冠よりも熱を減らす効果が高い。
✅ 正确答案
B. The cooling effect is most significant within 100 meters of the green area.