Bronte Wells
China and the USA are the world's two largest polluters, with China being the world's biggest emitter of carbon dioxide, producing 12.7 billion metric tons of emissions annually, compared to the USA's 5.9 billion tons. However, the USA has emitted almost twice as much carbon dioxide as China since 1850. The average Chinese person uses far less energy than the average American, with 10.1 tons of carbon pollution annually compared to 17.6 tons in the US. China's economy is coal-intensive, with over 60% of its energy produced by burning coal, and it continues to build coal-fired plants. The US, on the other hand, is burning less coal, and while China has made significant progress in reducing emissions per unit GDP, it still has higher emissions per unit GDP than the US.
| Characteristics | Values |
|---|---|
| Largest emitter of carbon dioxide | China |
| Annual carbon dioxide emissions | China: 12.7 billion metric tons |
| USA: 5.9 billion tons | |
| Cumulative carbon dioxide emissions since 1850 | China: 284 billion tons |
| USA: 509 billion tons | |
| Carbon dioxide emissions per person | China: 10.1 tons |
| USA: 17.6 tons | |
| Carbon dioxide emissions per person per year | China: 2 tons |
| USA: 4 tons | |
| Energy generated by burning coal | China: 60% |
| Coal power plants constructed in 2022 | China: Six times more than the rest of the world combined |
| Spending on low-carbon energy transition in 2022 | China: $546 billion |
| USA: $141 billion | |
| Contribution of Chinese emissions to the West Coast of the United States | Sulfate: 12%-24% |
| Ozone: 2%-5% | |
| Carbon monoxide: 4%-6% | |
| Black carbon particulate: up to 11% |
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What You'll Learn
- China's annual carbon dioxide emissions are more than twice that of the US
- The US emits twice as much carbon dioxide per person than China
- China's energy is mostly from burning coal, which is more polluting
- China's exports to the US cause air pollution in the US
- China's emissions contribute to non-compliance with US ozone standards
China's annual carbon dioxide emissions are more than twice that of the US
China's carbon dioxide emissions are significantly higher than those of the United States. In 2020, China emitted 10.7 billion metric tons of carbon dioxide, while the United States emitted 5.9 billion metric tons, making China the world's largest emitter. China's emissions are expected to increase further, with a projected growth of 4% in 2021, contributing to the overall rise in global emissions.
China's carbon dioxide emissions primarily originate from coal consumption, which is extensively used for electricity generation and industrial processes. The country's demand for electricity is projected to lead to the development of up to 150 gigawatts of new coal-fired generation capacity by 2025. This would bring China's total coal-fired generation capacity to 1,230 gigawatts, approximately six times that of the United States. China already accounts for over half of the global coal-fired electricity output.
While China is making efforts to transition to low-carbon energy, it continues to build coal-fired plants. In 2022, China's coal power capacity under construction was six times larger than the rest of the world combined. Coal-fired plants are a significant contributor to global greenhouse gas emissions, and China's expansion in this area has drawn criticism from those concerned about the country's commitment to combating climate change.
Despite China's position as the largest emitter of carbon dioxide, it is important to note that the United States has historically emitted more carbon dioxide due to its earlier industrialization. Additionally, when considering per capita emissions, the United States emits twice as much carbon dioxide as China. However, China's emissions per capita are increasing, tripling over two decades.
The relationship between the United States and China regarding climate change is complex. While there have been diplomatic tensions, both countries have also shown a willingness to cooperate on addressing this global issue. Experts emphasize the importance of continued emission reductions by both nations, acknowledging the significant impact of their actions on the global climate and their influence on other countries.
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The US emits twice as much carbon dioxide per person than China
China and the United States are the two largest polluters in the world, with China being the largest emitter of carbon dioxide. In 2023, China emitted 11,903 million metric tons of carbon dioxide, while the US emitted 4,911 million metric tons. However, when it comes to per capita emissions, the US emits almost twice as much carbon dioxide per person as China. The average Chinese person uses far less energy than the average American, with an annual emission of 10.1 tons compared to 17.6 tons in the US.
China's rapid economic growth and its position as the world's largest manufacturer have significantly contributed to its carbon dioxide emissions. The country's reliance on coal and imported oil as primary energy sources has made it the top carbon dioxide emitter. Additionally, China's export-oriented economy has led to increased emissions from the production and transportation of goods, impacting air quality in the US and other parts of the world.
The US, on the other hand, has historically emitted almost twice as much carbon dioxide as China since 1850. The US was an early industrializer, and its emissions have contributed significantly to global warming. While the US has reduced its annual carbon dioxide emissions in recent years, it still emitted about 5 billion metric tons in 2021, more than twice the emissions of all 28 countries in the European Union combined.
Both countries are taking steps to address climate change and reduce their carbon dioxide emissions. China is planning to reduce its dependence on coal and invest in renewable energy sources, while the US has passed legislation to improve energy infrastructure and promote clean energy technologies. However, the perception that China is not doing enough persists, and the US faces the challenge of continuing to reduce its emissions while also addressing the impact of its historical emissions.
In summary, while China emits more carbon dioxide annually than the US, the US emits nearly twice as much per person. Both countries play crucial roles in combating climate change, with China focusing on transitioning from coal to cleaner energy sources and the US striving to reduce emissions and adapt to new technologies.
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China's energy is mostly from burning coal, which is more polluting
China is the world's largest emitter of carbon dioxide, producing 12.7 billion metric tons of emissions annually, which is more than twice as much as the US. The average Chinese person uses far less energy than the average American, with 10.1 tons of carbon pollution annually compared to 17.6 tons in the US. However, China's energy is largely produced by burning coal, which is a highly polluting fossil fuel.
Coal is a key driver of China's rapid economic growth, particularly in the production of goods for export. Between 2000 and 2007, the volume of Chinese exports grew by 390%. The energy required to sustain this growth has come from the combustion of fossil fuels, mainly coal. This has resulted in a global increase in carbon dioxide emissions. China's coal-fired power plants also produce a fifth of global greenhouse gas emissions, more than any other single source.
In addition to carbon dioxide, burning coal releases other harmful pollutants such as sulfur dioxide, nitrogen oxides, carbon monoxide, black carbon, and primary organic carbon. These pollutants have contributed to air pollution in the US, particularly in the western states, due to the transport of Chinese exports. In 2006, China-to-US exports of goods resulted in increased levels of surface sulfate and ozone in the western US, leading to non-compliance with the US ozone standard in the Los Angeles area and several eastern regions.
Despite recent pledges by Chinese President Xi Jinping to "strictly limit the increase in coal consumption," China's construction of new coal-fired power plants reached a 10-year high in 2024. This resurgence in coal-power expansion poses a challenge to China's climate commitments and its ability to transition to clean energy. China began building 94.5 gigawatts of new coal-power capacity and resumed 3.3 gigawatts of suspended projects in 2024, fueled by investments from the coal mining sector.
While China is making efforts to transition to clean energy, its energy sector is still heavily reliant on burning coal, which is a major source of air pollution. This contributes to China's high levels of carbon dioxide emissions and other pollutants, impacting both China and other countries, including the US.
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China's exports to the US cause air pollution in the US
China is the world's largest emitter of carbon dioxide, producing 12.7 billion metric tons of emissions annually. In comparison, the US emits 5.9 billion tons annually. However, when it comes to per capita emissions, the US emits almost twice as much carbon dioxide as China. The average Chinese person uses far less energy than the average American, with an annual carbon pollution output of 10.1 tons compared to 17.6 tons in the US.
China's rapid economic growth in the past decade has been driven by a significant increase in the production of goods for export. This has resulted in a greater combustion of fossil fuels, particularly coal, which has contributed to a global rise in carbon dioxide emissions. China's exports of energy-intensive industrial products have also led to a drastic increase in other air pollutants such as sulfur dioxide, nitrogen oxides, carbon monoxide, black carbon, and primary organic carbon.
A study published in 2014 by the Proceedings of the National Academy of Sciences found that China's manufacturing of exports generates pollution that not only affects air quality in Asia but is also carried across the Pacific Ocean, contributing to air pollution in the Western United States. The study quantified the emissions of sulfur dioxide, nitrogen oxides, carbon monoxide, black carbon, and primary organic carbon embodied in Chinese exports between 2000 and 2009, with a specific focus on trade with the United States. It was found that about 21% of export-related emissions from China for each of these pollutants were destined for the US market.
The impact of China's export-related pollution on the US is significant. In 2006, the transport of China-to-US export goods contributed to an increase in surface sulfate concentrations and ozone levels over the western United States. This resulted in one extra day or more of noncompliance with the US ozone standard in 2006 over the Los Angeles area and several regions in the eastern United States. Thus, while outsourcing manufacturing to China may lead to cleaner air in the eastern US due to reduced local emissions, it comes at the cost of increased air pollution in the western regions of the country.
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China's emissions contribute to non-compliance with US ozone standards
China is the world's largest emitter of carbon dioxide, producing 12.7 billion metric tons of emissions annually, which is more than twice the emissions produced by the US. However, the average American emits twice as much carbon dioxide as the average Chinese person. The US industrialised much earlier than China and has released almost twice as much carbon dioxide since 1850: 509 billion tons compared to China's 284 billion tons.
China's rapid economic growth has been driven by a huge expansion in the production of goods for export. This has been fuelled by the combustion of fossil fuels, primarily coal, which has contributed to a global increase in carbon dioxide emissions. In addition, increased combustion of fossil fuels, relatively low combustion efficiency, and weak emission control measures have led to drastic increases in air pollutants such as sulfur dioxide, nitrogen oxides, carbon monoxide, black carbon, and primary organic carbon.
China's emissions have had a significant impact on air quality in the US. Atmospheric modelling has shown that in 2006, the transport of export-related Chinese pollution contributed to an increase in surface sulfate concentrations and ozone levels over the western US. This resulted in one extra day or more of non-compliance with US ozone standards in 2006 over the Los Angeles area and many regions in the eastern US.
China has been accused of violating a global production ban on ozone-depleting substances (ODS). A study published in the journal Nature in 2019 found that about 40-60% of the global rise in the prohibited ozone-destroying refrigerant trichlorofluoromethane (CFC-11) since 2013 could be attributed to the industrial provinces of Shandong and Hebei in northern China. China denied that there were serious violations of the ban but promised to eradicate any illegal production and use. China ratified the Montreal Protocol, an international pact to preserve the ozone layer, in 1991, and has since made efforts to eliminate ODS production and phase out other ozone-damaging chemicals.
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Frequently asked questions
China emits more carbon dioxide annually than the USA. China emits 12.7 billion metric tons of carbon dioxide annually, compared to the USA's 5.9 billion tons.
The USA has emitted almost twice as much carbon dioxide as China since 1850, with 509 billion tons compared to China's 284 billion tons.
The USA emits more carbon dioxide per person than China. The USA emits twice as much carbon dioxide per person as China, with 17.6 tons per person compared to China's 10.1 tons.
China's rapid economic growth has been driven by the expansion of production for export, primarily through the combustion of coal. This has contributed to increased emissions of carbon dioxide and other air pollutants such as sulfur dioxide and nitrogen oxides.
China's air pollution has resulted in higher levels of sulfate, ozone, carbon monoxide, and black carbon particulate over the western United States, affecting air quality and causing non-compliance with ozone standards in some regions.
