Edit: A lot of people seem to hate on the article without reading it.
Here is a supporting scientific source, by the same author: https://www.sciencedirect.com/science/article/pii/S2666188825000863
The environmental impact of our online habits is far larger than most realize, and as digital communication continues to evolve, we must consider its long-term consequences on the environment and human life. We should take the easy steps of cutting wasteful energy use in our communications and it can start with eliminating email signatures.
Please stop spreading this misleading tidbit. The original source is the Carbon Majors database.
https://influencemap.org/briefing/The-Carbon-Majors-Database-26913
It doesn’t say that 80% of emissions are caused by 57 companies. But by 57 entities.
One such entity is “China”. Another one is “The Former Soviet Union”.
Unsurprisingly, the actual privately owned companies that show up in the data (which cause about a quarter of emissions) are all energy, oil and gas producers.
Unfortunately, the climate problem doesn’t have a solution as easy as “stop a few rich CEOs from doing evil”.
The former Soviet Union, its allies, those opposing it, and neutral parties account for all carbon emissions post 1917