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.
❓ Según la conferencia, ¿qué sugiere el orador que hagan los planificadores urbanos para reducir el calor urbano?
A. A. Construir un gran parque central en el centro de la ciudad.
B. B. Utilice materiales de colores oscuros para carreteras y edificios
C. C. Crear varios espacios verdes pequeños en toda la ciudad
D. D. Aumentar el número de edificios altos para proporcionar sombra
✅ 正确答案
C. Create several small green spaces across the city