Today, in our environmental science lecture, we're discussing urban green spaces. A recent study in Melbourne found that adding parks and community gardens can reduce the city's average temperature by up to two degrees Celsius. This cooling effect occurs because plants release moisture through transpiration, which lowers surrounding air temperature. However, the study highlighted that the distribution of these spaces is uneven, with wealthier neighborhoods having 40% more green coverage than lower-income areas. This disparity leads to what researchers call 'thermal inequality,' where poorer residents experience higher heat-related health risks during summer. To address this, the city plans to plant 5,000 trees in underserved districts by 2028.
❓ 墨尔本的研究揭示了城市绿地的哪些方面？
A. A. 它们增加了与高温相关疾病的风险。
B. B. 它们均匀分布在各社区中。
C. C. 它们能降低城市温度，但分布不均。
D. D. 他们仅通过植树惠及较富裕的居民。
✅ 正确答案
C. They can lower city temperatures but are unevenly distributed.