By using satellite imagery and mapping technology, scientists studied how rehabilitating land in the Heidaigou coal mine area in China affected the amount of carbon absorbed by plants and soil. They found that between 1987 and 2010, the carbon absorption value dropped by 17%, decreasing from 7.2 million tons to 6 million tons. However, by transforming mining areas into grasslands and woodlands, the carbon absorption could be boosted by 10-12%, leading to enhanced ecological and economic benefits. This research suggests that fixing damaged lands and improving green spaces can help the environment and also provide financial advantages.