Today, in our environmental science lecture, we'll discuss the impact of urban green spaces. A recent study in Melbourne found that adding more parks and trees can reduce the city's temperature by up to 4 degrees Celsius during heatwaves. This cooling effect is mainly due to shade and evapotranspiration. However, the study also noted that the benefits are strongest when green spaces are evenly distributed, rather than concentrated in a few wealthy areas. Interestingly, the researchers emphasized that even small community gardens can have a significant impact, but they need to be maintained properly to ensure long-term effectiveness.
❓ 講義によると、メルボルンの研究では都市の緑地について何が明らかになったのでしょうか？
A. A. それらは熱波の際に都市の気温を最大4度下げることができます。
B. B. それらは中心業務地区に集中しているときに最も効果的である。
C. C. 大規模な公園でない限り、それらは重要な影響を及ぼさない。
D. D. それらは主に気温ではなく大気汚染を減らすのに役立つ。
✅ 正确答案
A. They can lower city temperatures by up to 4 degrees during heatwaves.