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Companies which are the largest polluters in the world

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Polluters: Which Companies Are Responsible For the Most Carbon Emissions

Since 1965, it’s estimated over 1.35 million metric tons (MtCO₂e) of greenhouse gases have been released into the atmosphere—and over a third can be traced back to just 20 companies. The chart draws on a data set from the Climate Accountability Institute, and highlights the companies which have been responsible for the most carbon emissions in the past half-century.

The Sum of their Carbon Emissions

Between 1965-2017, the top 20 companies have contributed 480,169 MtCO₂e in total carbon emissions, or 35% of cumulative global emissions. This whopping amount is mostly from the combustion of their products—each company on this chart deals in fossil fuels. The largest contributor? Saudi Aramco, the national petroleum and natural gas company of Saudi Arabia. Saudi Aramco actually comes in first on another list as well—it’s the most profitable company, making over $304 million daily. However, this financial gain came at a significant cost: the state-owned giant’s operations have resulted in 59,262 MtCO₂e in carbon emissions since 1965. To put that into perspective, this total is more than six times China’s emissions in 2017 alone (9,838 MtCO₂e). Explore the full list of pollution companies by location, who owns them, and their total 1965–2017 emissions count below.

Top 20 Companies Responsible For the Most Carbon Emissions (est.)

Company Country Ownership All Emissions, MtCO₂e
Total Emissions World Polluters 480,169 MtCO₂e
Saudi Aramco 🇸🇦 Saudi Arabia State-owned 59,262
Chevron 🇺🇸 U.S.A. Investor-owned 43,345
Gazprom 🇷🇺 Russia State-owned 43,230
Exxon Mobil 🇺🇸 U.S.A Investor-owned 41,904
National Iranian Oil Co. 🇮🇷 Iran State-owned 35,658
British Petroleum (BP) 🇬🇧 UK Investor-owned 34,015
Royal Dutch Shell 🇳🇱🇬🇧 Netherlands / UK Investor-owned 31,948
Coal India 🇮🇳 India State-owned 23,124
Pemex 🇲🇽 Mexico State-owned 22,645
Petroleus de Venezuela 🇻🇪 Venezuela State-owned 15,745
PetroChina 🇨🇳 China State-owned 15,632
Peabody Energy 🇺🇸 U.S.A. Investor-owned 15,385
ConocoPhillips 🇺🇸 USA Investor-owned 15,229
Abu Dhabi National Oil Co. 🇦🇪 UAE State-owned 13,840
Kuwait Petroleum Corp. 🇰🇼 Kuwait State-owned 13,479
Iraq National Oil Co. 🇮🇶 Iraq State-owned 12,596
Total SA 🇫🇷 France Investor-owned 12,352
Sonatrach 🇩🇿 Algeria State-owned 12,302
BHP Billiton 🇦🇺 Australia Investor-owned 9,802
Petrobras 🇧🇷 Brazil State-owned 8,676

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