10 Companies That Are The Biggest Polluters in the World

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5. National Iranian Oil Co.

Total greenhouse gas emissions from 1965 to 2017 (in billion tonnes of carbon dioxide equivalent): 35.66

Percentage of total greenhouse gas emissions from 1965 to 2017: 2.63%

Iran doesn’t really have as stringent regulations or their reinforcement as other Western companies which is why this state owned company also has an extremely poor environmental record, which is typical of fossil fuel companies in Iran and other developing economies.

Pixabay/Public Domain

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