100 corporations are not responsible for 71% of total global emissions. Research accurately comparing total global emissions to data collected from the 100 most-polluting corporations worldwide does not exist yet.
the human activities driving climate change the most are from heating buildings, electricity use, agriculture, farming and fossil fuel-burning facilities and vehicles.emissions from land use, land use change or forestry, or from sources such as landfills, agriculture and farming. It also did not include data on indirect emissions, which come from purchased energy such as heating and electricity, citing concerns about double-counting emissions attributable to corporations.
Richard Heede, the director of the Climate Accountability Institute and the study’s co-author, leads the Carbon Majors Database. It contains operational and product-related carbon dioxide and methane emissions related to 100 fossil fuel producers, aka the"carbon majors," which include ExxonMobil, Shell, BP, Chevron, Peabody and BHP Billiton.
It’s difficult to discern how much total global emissions can be attributed to the top 100 polluting corporations, but there are ways to get a ballpark idea., an average of around 60% of global emissions can be traced back to those 100 companies from 1990 to 2015. But CAIT's research includes emissions from agriculture, land use and electricity that wasn't considered in the 2017 study.
If you use the total global emissions excluding land use and land-use change and forestry emissions from the, then an average of around 63% of those emissions can be traced back to those 100 companies from 1988 to 2015. But Potsdam's research includes nitrous oxide and F-gases — fluorinated gases used in industrial applications — and considered only fossil fuel-related carbon dioxide and methane emissions.
Heede said in an email to PolitiFact that his recent research — not yet published — indicates that the emissions the study considered account for 70.4% of total human-made emissions from 1988-2018. That could mean that about half of total global emissions can be traced back to those 100 companies. But the timelines are not equal, and it's not peer-reviewed.
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