Today, in our environmental science lecture, we're discussing urban green spaces. Recent studies show that parks and community gardens can reduce city temperatures by up to 5 degrees Celsius. However, the key factor isn't just the number of trees, but their placement. For example, trees planted along streets provide more cooling than those clustered in a single park, because they shade surfaces where heat accumulates. Additionally, green roofs are effective but costly to install. Interestingly, a small park with varied plant species attracts more wildlife than a larger one with uniform grass. So, when designing sustainable cities, planners must prioritize strategic tree positioning over total green area.
❓ ¿Qué dice el conferenciante que es el factor más importante para reducir las temperaturas urbanas?
A. A. El número total de árboles en la ciudad
B. B. La ubicación de los árboles a lo largo de las calles