Today in our environmental science lecture, we'll discuss the impact of urban green spaces. Recent studies show that adding parks and community gardens can reduce local temperatures by up to 3 degrees Celsius, mainly through evapotranspiration and shade. However, the effectiveness depends on the size and connectivity of these areas. Small isolated patches have limited cooling effects, while larger interconnected networks can create 'cool corridors' that benefit surrounding neighborhoods. Interestingly, the study found that trees are more effective than grass in lowering daytime heat, but grass cools better at night. This has implications for city planning, especially in heat-vulnerable districts.
❓ Según la conferencia, ¿qué factor influye más en el efecto de enfriamiento de los espacios verdes urbanos?
A. A. El tipo de vegetación (árboles vs. hierba)
B. B. El tamaño y la conectividad de los espacios verdes
C. C. La hora del día en que se mide el enfriamiento
D. D. La ubicación de los distritos vulnerables al calor de la ciudad