Climate Crisis, Features

Top Twenty carbon polluters identified

Top carbon polluter: A Saudi Aramco processing plant. Photo: Aramco

The Climate Accountability Institute has released a new dataset quantifying how much each of the largest oil, natural gas, and coal companies has contributed to the climate crisis since 1965.

The Institute found that the Top Twenty companies have collectively contributed 480 billion tonnes of carbon dioxide and methane, chiefly from the combustion of their products, equivalent to 35% of all fossil fuel and cement emissions worldwide since 1965 (global total of 1.35 trillion tC02e).

Climate Accountability Institute director, Richard Heede, said: “On the theory that fossil fuel producers bear substantial responsibility for the adverse impacts of their products, we set out to determine how much each company’s carbon fuels contributed to rising carbon dioxide emissions. We also estimate their direct operational emissions (~12% of their total), which include CO2 from flaring and venting and own fuel use, and fugitive methane.

“We chose 1965 as the starting point for this new data because recent research has revealed that by mid-1960s the climate impact of fossil fuels was known by industry leaders and politicians. Although global consumers from individuals to corporations are the ultimate emitters of carbon dioxide, we focus on the fossil fuel companies that, in our view, have produced and marketed the carbon fuels to billions of consumers with the knowledge that their use as intended will worsen the climate crisis.”

Key findings:

• Global fossil fuel and cement emissions from 1965 to 2018 totalled 1,354 billion tonnes of carbon dioxide and energy-related methane (GtCO2e);

• The 20 largest investor-owned and state-owned fossil fuel companies produced carbon fuels that emitted 35% of the global total (480 GtCO2e);

• If we look over the entire historical data we find the current database of 103 fossil fuel and cement entities emitted 1,221 GtCO2e, or 69.8% of global since 1751 (1.75 TtCO2e); of which the Top Twenty companies are responsible for 526 GtCO2e, or 30% of all fossil fuel and cement emission since 1751;

• These companies have significant moral, financial, and legal responsibility for the climate crisis, and a commensurate burden to help address the problem;

• Half of all global fossil fuel and cement CO2 emissions since 1751 have been emitted since 1990;

• The climate crisis is worsening, global emissions are still rising, and they must peak immediately in order to reduce emissions by 45% by 2030 and net zero by 2050.

“It is incumbent on companies that value their social license to operate to respect climate science, manage corporate risks accordingly, commit to reducing future production of carbon fuels and their emissions in alignment with the Paris Agreement pathway under 1.5 °C (net zero by 2050), support the decarbonization of the global economy, and shift their capital investments toward renewables, carbon sequestration, and low-carbon fuels in line with science-based targets,” Heede said.

“Companies leading this transition will prosper, and laggards will perish. We will be watching.”

Top Twenty carbon polluters 1965-2017

In order of filth:

Saudi Aramco
Chevron
Gazprom
ExxonMobil
National Iranian Oil Co
BP
Royal Dutch Shell
Coal India
Pemex
Petróleos de Venezuela
PetroChina
Peabody Energy
ConocoPhillips
Abu Dhabi National Oil Co
Kuwait Petroleum Corp
Iraq National Oil Co
Total SA
Sonatrach
BHP Billiton
Petrobras

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