Today in our environmental science lecture, we'll discuss urban heat islands. Cities tend to be warmer than surrounding rural areas because concrete and asphalt absorb and re-emit heat. One surprising factor is that parks and green spaces can significantly reduce local temperatures, sometimes by up to 4 degrees Celsius. However, the effect is limited to a small radius around the green area. Therefore, city planners should distribute small parks throughout neighborhoods rather than relying on one large central park. Additionally, using light-colored materials for roofs and pavements can reflect more sunlight and further mitigate the heat.
❓ According to the lecture, what does the speaker suggest city planners do to reduce urban heat?
A. Build one large central park in the city center
B. Use dark-colored materials for roads and buildings
C. Create several small green spaces across the city
D. Increase the number of tall buildings for shade
✅ Correct Answer
C. Create several small green spaces across the city