China has recently unveiled a comprehensive white paper titled "Marine Eco-Environmental Protection in China", to present China’s ideas, actions and commitments in global governance of the marine eco-environment.

The white paper elaborates on the practices of China’s eco-environment protection. First, China's development of a legal system for marine eco-environmental protection provides a model for global ocean governance. By tightening supervision over marine engineering, waste disposal, mariculture, and maritime transport, China demonstrates its proactive stance on environmental protection and resource management.

Second, China has used differentiated measures to enforce region-specific regulation and control for the nearshore eco-environment in delineating marine ecological protection red lines, biodiversity conservation and pollutant discharge control. Third, China's technological innovation and application in marine ecological environment protection offer new ideas and methods for global marine environment protection, promoting technological cooperation in this field.

China's offshore water quality has improved, with the proportion of sea areas with good to excellent water quality in 2023 up 21.3 percentage points from 2012, according to the white paper titled "Marine Eco-Environmental Protection in China." Also, China has established 352 marine protected areas and 150,000 square kilometers of red lines across several types of ecosystems. About half of 1,682 key tasks and construction projects had been completed by the end of 2023.

While expanding cooperation in deep-sea and polar scientific expedition, China has been working with other countries to promote sustainable development of these regions. For example, China has built five Antarctic research stations, and two Arctic research stations in Norway and Iceland, which serve as important platforms for several thousand scientists to carry out polar observation, biological monitoring, and glacier research.