A new study by the Climate Accountability Institute (CAI) claims just 20 oil and gas companies are responsible for over one-third of all greenhouse gas emissions.
The research, conducted by Richard Heede at the CAI, is based on oil and gas production of the world's largest oil companies over the past 55 years and the subsequent emissions resulting in the production and use of those fuels.
Heede's analysis says fossil fuel and cement emissions totaled 1,354 billion tonnes of carbon dioxide equivalent between 1965 and 2018. The report claims, “The twenty largest investor-owned and state-owned fossil fuel companies produced carbon fuels that emitted 35% of the global total.”
Topping the lineup of the "terrible 20" are the usual suspects like Chevron, ExxonMobil, BP, and Shell, as well as state-owned organizations Saudi Aramco, Gazprom, National Iranian Oil Co., and Pemex.
