Today, in our environmental science lecture, we'll discuss urban green spaces. A recent study in Melbourne found that parks can reduce local temperatures by up to four degrees Celsius during heatwaves. However, the cooling effect depends on tree canopy coverage, not just grass areas. The researchers also noted that residents living within 300 meters of a large park reported better mental health. Interestingly, smaller pocket parks had less impact on temperature but were more accessible for daily walks. So, when designing sustainable cities, planners should prioritize a network of varied green areas rather than a single large park.
❓ Según la conferencia, ¿qué reveló el estudio en Melbourne sobre los parques grandes?
A. Son más eficaces para reducir las temperaturas que los parques pequeños.
B. Solo tienen un efecto refrescante cuando la cobertura arbórea es suficiente.
C. Son menos beneficiosos para la salud mental que los parques de bolsillo.
D. Siempre están ubicados a menos de 300 metros de zonas residenciales.
✅ 正确答案
They have a cooling effect only when tree coverage is sufficient.