20 Companies Have A Dirty Secret

The Climate Accountability Institute says they’re responsible for 35% of emissions

Fossil fuel companies emit greenhouse gases—we know. But a new analysis says 20 such companies are responsible for over a third of all greenhouse gas emissions since 1965, the Guardian reports. Conducted by Richard Heede, an authority at the Climate Accountability Institute, the study says 20 companies have released 35% of the world’s energy-linked methane and carbon dioxide in modern times.

That includes state-owned polluters like Saudi Aramco, said to have released 4.38% of total world emissions, and eight investor-owned companies. The data covers each company’s full supply chain from ground extraction to end use, per MarketWatch. The top 10, with CO2-equivalent emissions in billions of tons since ’65: