In today's lecture, we'll discuss the impact of urbanization on local ecosystems. One key point is that cities often create 'heat islands' due to concrete and asphalt absorbing sunlight. However, planting trees can reduce this effect by providing shade and releasing moisture. A recent study in Melbourne found that increasing tree cover by 20% could lower peak summer temperatures by up to 4 degrees Celsius. Additionally, green roofs are another solution, but they are more expensive to install. The study also noted that while trees help with cooling, they may increase water consumption in dry regions. Therefore, urban planners must balance these factors carefully.
❓ Según la conferencia, ¿qué encontró el estudio en Melbourne sobre aumentar la cobertura arbórea en un 20%?
A. A. Podría reducir las temperaturas máximas del verano hasta en 4 grados Celsius.
B. B. Aumentaría el consumo de agua en todas las regiones.
C. C. Es más caro que instalar techos verdes.
D. D. No tiene ningún efecto sobre el fenómeno de la 'isla de calor'.
✅ 正确答案
A. It could reduce peak summer temperatures by up to 4 degrees Celsius.