Today in our environmental science lecture, we'll discuss urban green spaces. Recent studies show that parks in cities do more than just beautify the area. They help reduce the 'heat island' effect, where built-up areas become significantly warmer than surrounding rural zones. Trees and grass cool the air through evaporation and shade. Additionally, these spaces improve mental health by providing a quiet retreat from noisy streets. However, the maintenance cost is often underestimated, and many cities struggle to fund regular upkeep. Despite this, the long-term benefits, such as reduced energy consumption from lower temperatures, outweigh the initial investment.
❓ According to the lecture, what is one major benefit of urban green spaces mentioned?
A. They increase property values in the surrounding area.
B. They help lower city temperatures through natural cooling.
C. They provide free recreational facilities for sports.
D. They reduce the need for public transportation.
✅ 正确答案
They help lower city temperatures through natural cooling.