The study analyzed the ecological footprint of Kunming City from 2000 to 2010 to see how sustainable its development was. The researchers found that during this period, the city's ecological footprint per person increased significantly, while the ecological capacity decreased. This led to a growing ecological deficit, indicating that the city's development is not environmentally sustainable. The ecological pressure index was high, showing the city's environment is at risk. The findings suggest that Kunming needs to address its unsustainable practices to protect its ecological environment.