Today in our environmental science lecture, we'll discuss urban green spaces. A recent study in Manchester found that adding parks and community gardens can reduce local temperatures by up to 2 degrees Celsius during summer heatwaves. However, the researchers noted that the cooling effect is strongest within 50 meters of the green area. They also discovered that trees are more effective than grass alone, because they provide shade and release moisture through their leaves. Interestingly, the study suggested that small, scattered green spaces work better than one large park for reaching more residents. This is because people are more likely to use a park within a 10-minute walk from their home. So, for city planners, the key is not just creating green areas, but ensuring they are evenly distributed across neighborhoods.
❓ Según la conferencia, ¿qué encontró el estudio sobre el efecto de enfriamiento de los espacios verdes urbanos?
A. A. Los parques grandes son más efectivos que los espacios verdes pequeños y dispersos
B. B. El efecto de enfriamiento es más fuerte dentro de los 50 metros del área verde.
C. C. Solo la hierba es más efectiva que los árboles para enfriar.
D. D. El efecto de enfriamiento solo funciona durante los meses de invierno
✅ 正确答案
B. The cooling effect is strongest within 50 meters of the green area