Today in our environmental science lecture, we will discuss the impact of urban heat islands. These are areas in cities that are significantly warmer than surrounding rural areas due to human activities and infrastructure. One surprising factor is the role of dark roofing materials, which absorb more heat. However, a simple solution is to paint roofs white or use reflective coatings. Studies show that this can reduce cooling energy use by up to 20% in hot climates. Additionally, planting trees strategically around buildings can provide shade and reduce ambient temperatures by several degrees, but this requires careful planning to avoid blocking winter sunlight.
❓ According to the lecture, what is one effective way to reduce the urban heat island effect?
A. Using dark roofing materials in new buildings
B. Painting roofs white or using reflective coatings