Photo taken on May 7, 2025 shows workers collecting kelp in the Qingyutan sea area of Rongcheng City, east China’s Shandong Province. (Yang Zhili/Pictures)。

Photo taken on May 7, 2025 shows workers collecting kelp in the Qingyutan sea area of Rongcheng City, east China’s Shandong Province. (Yang Zhili/Pictures)。