Top 10 oil & gas CO2 emittersMore than 40% of the oil and gas sector emissions came from China's two largest oil majors alone - Sinopec (600028.SS) and PetroChina (601857.SS) - while investor staples including Shell (SHEL.L), Saudi Aramco (2222.SE) and Chevron also ranked high in the emissions table.
As hefty as their collective discharges have been, however, oil and gas companies have not been the only steady polluters.
Top 10 power companies by CO2 emissionsOnce again, China-based companies came out on top, and accounted for over half of the CO2 from the 10 largest global firms in the utilities and power segment last year.
However, companies from the United States, Europe, India and Japan also made the top 10 leader board, underscoring the wide scope of polluters on the global emissions stage.
STEELY RESOLVEGlobal metals and mining firms also racked up a significant collective emissions tally in 2021, hitting close to 600 million tonnes of CO2 and equivalent gases.