Urban growth patterns have a big impact on the environment. Researchers studied how urban development affects cities in Korea over time. They looked at data from the 1980s, 1990s, and 2000s to see how urbanization changed two cities. They found that when cities grew in a concentrated way, the impact on the environment was stronger and spread further. This shows that urban planning needs to consider how cities grow and protect green spaces. Understanding these patterns is important for protecting the environment in cities.