Research on China’s role in atmospheric pollution and climate change focuses on both its outsized emissions and its evolving policies and technologies.

China is the world’s largest emitter of carbon dioxide, driven by heavy reliance on coal for power and industry, rapid urbanization, and large-scale manufacturing. Coal use generates not only greenhouse gases but also severe air pollution, including fine particulate matter that harms health and contributes to regional haze. Industrial activity, transport, and residential heating all add to the burden of sulfur dioxide, nitrogen oxides, black carbon, and organic aerosols.

Studies show that Chinese emissions significantly influence regional and global climate, affecting monsoon patterns, cloud properties, and radiative forcing. Black carbon deposited on snow and ice in the Himalayas and Tibetan Plateau accelerates melting, altering water resources for hundreds of millions of people downstream.

At the same time, China has become a central actor in mitigation. Research documents rapid growth of renewable energy capacity, large investments in solar and wind manufacturing, and expansion of nuclear and hydropower. Air quality regulations, desulfurization in power plants, and restrictions on coal in urban areas have already led to measurable reductions in some pollutants, although carbon dioxide emissions continue to rise overall.

Climate modeling and observational studies emphasize that China’s future energy choices are pivotal for achieving global temperature targets. Scenarios indicate that accelerated coal phaseout, electrification, and large scale deployment of low carbon technologies in China would substantially reduce global warming and improve air quality across East Asia.