Carbon dioxide emissions from China have flatlined or fallen for 21 months, meaning the world’s biggest greenhouse gas emitter may have reached a global turning point sooner than expected.
China’s carbon dioxide (CO2) emissions dropped by 1% in the last quarter of 2025 and likely by 0.3% over the whole year, keeping them just beneath the record highs reached in May 2024, according to a new analysis by the Finland-based Centre for Research on Energy and Clean Air (CREA) for Carbon Brief. The nearly two-year flatline or fall is the longest on record not driven by an economic slowdown in the country, which emits over a third of global CO2.
If the trend holds, China’s emissions could reach an all-time peak before 2030 — the country’s official target date — or even sooner, marking a key win in the global effort to curb fossil fuel use and slow global warming. Yet whether the drop is sustained or demand will drive a rebound in emissions before the officially targeted peak remains an open question.
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