Today in our environmental science lecture, we're discussing the impact of urban green spaces. A recent study in Melbourne found that increasing tree coverage by just 10% can reduce local temperatures by up to 2.5 degrees Celsius during summer heatwaves. However, the researchers noted that the effect is strongest in residential areas with low-rise buildings, not in dense city centers. They also highlighted that maintenance costs are often underestimated, which can lead to neglect of these spaces over time. The key recommendation is to prioritize planting drought-resistant species to ensure sustainability.