Editor's note: Yu Chuxiao, a special commentator for CGTN, is an associate professor at the School of Law, Wuhan University. Zhang Min and Zhang Ziyao are master students at the Research Institute of Environmental Law, Wuhan University. The article reflects the authors' views and not necessarily those of CGTN.

China's Ecological and Environment Code, the world's first comprehensive environmental code, took effect on August 15, marking far more than a milestone in China's legal system. The monumental 1,242-article statute establishes the world's pioneering standalone climate chapter with its Book IV, which focuses on "Green and Low-Carbon Development."

Transitioning from scattered regulatory documents and non-binding targets to a systematic statutory framework, China has addressed a vital legislative gap, providing a compelling model of how domestic law can solidify global climate governance.

The timing is critical. Global climate action faces political headwinds, unmet finance pledges, and escalating extreme weather events. Against this backdrop, China has responded with enduring statutory law, as opposed to disposable policy declarations.

From policy slogans to statutory mandates

The code's climate chapter in Book IV enshrines carbon peaking before 2030 and carbon neutrality before 2060, also known as China's "dual carbon" goals, as statutory priorities. These goals are legally integrated into national economic planning, establishing mandatory controls over total carbon emissions and carbon intensity. The law codifies the supporting architecture of carbon accounting, ecosystem carbon sinks, and the national carbon emissions trading system.

Climate compliance is no longer discretionary. Key emitters are legally mandated to report emissions and surrender allowances, backed by explicit administrative penalties for non-compliance. This framework locks in the momentum of China's energy transition, as reflected in its national carbon market, which accumulated 935.09 million tons in trading volume by July 2026, and its 2035 nationally determined contribution (NDC) target to cut economy-wide emissions by 7% to 10% from their peak.

Furthermore, this chapter elevates climate adaptation into a mandatory legal duty, requiring a national strategy, provincial action plans, and climate-risk monitoring systems. By unifying mitigation, adaptation, and market regulation, the code achieves what single-issue statutes cannot: a systematic, synergy-driven approach to pollution reduction and carbon mitigation.

Bridging domestic law and international obligations

Beyond internal reform, the code directly addresses a chronic flaw in global climate governance – the "implementation deficit," defined as the frustrating gap between grand international pledges and enforceable national execution.

The climate chapter creates a statutory obligation for competent authorities, at determined intervals, to update NDCs, national greenhouse gas inventories, and implementation reports. This represents a direct internalization of the Paris Agreement obligations, operationalizing the foundational legal principle of pacta sunt servanda (agreements must be kept).

This design aligns seamlessly with international judicial developments. The International Court of Justice in its 2025 Climate Advisory Opinion affirmed that pursuing domestic mitigation under the Paris Agreement constitutes an "obligation of conduct governed by due diligence." By embedding the five-year NDC renewal cycle into its environmental code, China demonstrates the precise due diligence required by international law, transforming diplomatic goodwill into predictable domestic compliance.

As Minister of Ecology and Environment Huang Runqiu noted, this climate chapter embodies China's responsibility as a major power, setting an exemplary precedent for global environmental rule of law.

From rule follower to rule maker

A firm domestic legal foundation naturally extends outward. The code mandates active participation in global climate governance, bilateral and multilateral cooperation, and the alignment of technical standards and scientific exchange. China is no longer merely adapting to international rules. It is creating channels for its green technologies and standards to shape global governance.

This legislative vision is backed by unmatched physical delivery. Chinese manufacturers supply roughly 70% of global wind power equipment and 80% of photovoltaic modules, driving global wind and solar costs down by over 60% and 80% respectively. Through green Belt and Road initiatives and South-South cooperation, encompassing 56 agreements across 43 developing nations and training over 10,000 climate specialists, China provides practical capacity-building for the Global South.

Ultimately, the rule of law provides a scarce resource for contemporary global politics – predictability. While global climate policies frequently swing with election cycles and administration changes in the West, China's Ecological and Environment Code embeds climate commitments into statutory law that will outlast political shifts.

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