Photo taken on Feb. 7, 2023 shows the Jiangdong Development Building under construction in Jiangdong New Area of Haikou, south China's Hainan Province, Feb. 7, 2023. [Photo/VCG]

China's southern island province of Hainan released a set of trial regulations on the system of personal carbon accounts, an important measure for the province to support the dual carbon goals.