Today in our environmental science lecture, we're discussing urban green spaces. A recent study in Melbourne found that adding more parks and trees in city centers can reduce local temperatures by up to 4 degrees Celsius during heatwaves. However, the researchers noted that the cooling effect is strongest within 100 meters of the green area. Beyond that distance, the benefit drops sharply. The study also highlighted that vertical gardens on buildings are less effective than ground-level parks for cooling, but they still help with air quality. So, while green roofs are useful, they don't replace the need for larger communal parks.
❓ 강의에 따르면, 도시 녹지 공간의 냉각 효과에 대한 주요 발견은 무엇인가요?
A. A. 녹색 지붕은 공원보다 냉각 효과가 더 효과적이다.
B. B. 냉각 효과는 녹지로부터 짧은 거리 내로 제한된다.
C. C. 수직 정원은 온도를 낮추는 데 가장 효과적입니다.
D. D. 공원은 폭염 동안 도시 기온에 영향을 미치지 않는다.
✅ 正确答案
B. The cooling effect is limited to a short distance from the green area.