Today, in our environmental science lecture, we're discussing urban heat islands. You might think that planting more trees is the best solution, but recent studies show that reflective surfaces, like white roofs, can be more effective in reducing city temperatures. For example, in Los Angeles, a project to paint roofs white lowered local temperatures by up to 3 degrees Celsius. However, trees provide additional benefits such as improving air quality and supporting biodiversity. So, while white roofs offer immediate cooling, trees are a long-term investment. The key is to combine both strategies depending on the city's climate and infrastructure.
❓ 讲师关于白色屋顶与树木相比有何说法？
A. 白色屋顶在所有方面都比树木更有效。
B. 树木提供的降温效果比白色屋顶更为直接。
C. 白色屋顶见效更快，但树木能带来额外的环境效益。
D. 树木对空气质量的改善作用不如白色屋顶显著。
✅ 正确答案
White roofs work faster but trees offer extra environmental benefits.