Only 90 companies, including Shell, ExxonMobil, ChevronTexaco and BP, are responsible for causing nearly two-thirds of all man-made global emissions since the start of the Industrial Revolution, according to research by the Climate Accountability Institute.
The research, titled Tracing anthropogenic carbon dioxide and methane emissions to fossil fuel and cement producers, 1854-2010, found the top emitters include 50 investor-owned companies, 31 state-owned companies, and nine government-run industries in the former Soviet Union, China and other countries. Some 83 of the 90 are coal, oil and gas producers and the remaining seven are cement manufacturers.