Good morning, everyone. Today, in our environmental science lecture, we'll discuss urban green spaces. Recent studies show that parks and community gardens not only improve air quality but also significantly reduce stress levels among city dwellers. However, a key finding is that the benefits are most noticeable when these spaces are within a ten-minute walk from people's homes. For instance, a study in London found that residents living near green areas reported 20% lower anxiety. Interestingly, the size of the space matters less than its accessibility. So, city planners should prioritize creating small, well-distributed green pockets rather than one large park.