How Much Have the Oil Supermajors Contributed to Climate Change?

In the 40-year period 1980–2019, annual carbon dioxide (CO2) emissions from fossil fuel combustion, including flaring, increased by more than 80%, and total emissions from those sources represented approximately 83% of anthropogenic CO2 emissions (also including cement production and land-use change) without accounting for sinks. Understanding the carbon footprint of countries and companies along the oil value chain is fundamental to outlining paths to reduced reliance on fossil fuels. However, academic analyses of carbon footprints are limited by the lack of a reliable dataset and carbon accounting method that would allow comparisons across countries and companies