In a study about improving outdoor comfort in cities affected by climate change, researchers found that using water spraying systems can cool down urban areas by 2-3 degrees Celsius. This helps pedestrians feel more comfortable in hot weather. However, the cooling effect is most effective when the urban layout allows for better air circulation. To make cities more resilient to heat stress, it's important to plan for future climate changes by creating more open spaces, planting trees, and using sunshades to reduce direct sunlight.