Per capita CO₂ emissions in G20 countries 2023

Saudi Arabia is the largest per capita emitter of fossil carbon dioxide (CO₂) among G20 countries. In 2023, emissions in the Middle Eastern country amounted to just over 17 metric tons per person (tCO₂/cap). Meanwhile, India had the lowest per capita CO₂ emissions, at around 2.1 tCO₂/cap.Population vs emissionsDespite being the most populated G20 country, India has the lowest per capita CO₂ emissions of them all. This is mainly due to India’s economy being largely agrarian. Additionally, per capita energy consumption in the South Asian country is relatively low compared to many developed nations. On the other hand, Canada, which has a small population size of roughly 38 million, had the second-largest emissions per capita in the G20. The North American country’s oil and gas industry is a key factor for this. Emissions from oil and gas productionOther major oil and gas producers, such as Saudi Arabia, the U.S., and Russia, are also among the biggest per capita emitters globally. Russia alone accounted for nearly a quarter of global GHG emissions from oil and gas production in 2022, while the U.S. contributed almost 20 percent.

沙特阿拉伯是二十国集团中人均化石二氧化碳（CO₂）排放量最大的国家。截至2023年，该中东国家的排放量高达每人超过17吨（tCO₂/人）。与此同时，印度的人均CO₂排放量最低，约为2.1吨（tCO₂/人）。尽管印度是二十国集团中人口最多的国家，但其人均CO₂排放量却是所有国家中最低的。这主要归因于印度的经济以农业为主。此外，与许多发达国家相比，南亚国家的人均能源消耗相对较低。另一方面，加拿大，其人口规模约为3800万，在二十国集团中人均排放量位居第二。北美国家的石油和天然气工业是造成这一现象的关键因素。石油和天然气生产的排放量此外，其他主要的石油和天然气生产国，如沙特阿拉伯、美国和俄罗斯，也是全球最大的人均排放者。仅俄罗斯在2022年就占全球石油和天然气生产温室气体排放量的近四分之一，而美国贡献了近20%。