The article compares the effects of dams on two river deltas, the Volta River Delta in Ghana and the Yellow River Delta in China. The researchers found that the sediment loads in both deltas decreased significantly after dam construction, but the Yellow River Delta experienced a gradual decline while the Volta River Delta saw a sudden drop. This difference was likely due to the size of the reservoirs and the location of the dams. As a result, the Volta River Delta has reached a new equilibrium, while the Yellow River Delta continues to expand. This study provides insights into how similar deltas worldwide may evolve in the future.