雅思听力

🎧 Listening Transcript

Today in our environmental science lecture, we'll discuss urban heat islands. As cities grow, they replace natural surfaces with concrete and asphalt, which absorb and retain heat. This effect can raise city temperatures by several degrees compared to surrounding rural areas. One key solution is increasing green spaces, such as parks and green roofs, which provide shade and cool the air through evaporation. Another approach is using reflective materials on buildings and roads to reduce heat absorption. However, implementing these measures requires careful planning and investment from local governments. Now, let's look at a case study from Singapore...