The article examines how the Yellow River delta coast has changed over time, focusing on erosion and deposition rates. By comparing historical maps and photos, researchers found that the river's course change in 1996 led to the formation of new subdeltas. The coast is divided into different sections, some stable and others retreating or depositing sediment. The study predicts that these patterns will continue for the next decade, with human activities playing a role in shaping the coastline.