In today's lecture, we'll discuss the impact of urbanization on local ecosystems. One key point is that cities often create 'heat islands' due to concrete and asphalt absorbing sunlight. However, planting trees can reduce this effect by providing shade and releasing moisture. A recent study in Melbourne found that increasing tree cover by 20% could lower peak summer temperatures by up to 4 degrees Celsius. Additionally, green roofs are another solution, but they are more expensive to install. The study also noted that while trees help with cooling, they may increase water consumption in dry regions. Therefore, urban planners must balance these factors carefully.
❓ 講義によると、メルボルンの研究では、樹木被覆を20%増やすことで何が判明したのでしょうか？
A. A. 夏のピーク時の気温を最大で摂氏4度下げることができる可能性があります。
B. B. それはすべての地域における水消費量を増加させるだろう。
C. C. 緑の屋根を設置するよりも費用がかかる。
D. D. それは「ヒートアイランド」現象には影響を及ぼさない。
✅ 正确答案
A. It could reduce peak summer temperatures by up to 4 degrees Celsius.