I can see how the richest 10% of the entire global population would include a fair chunk of the middle class in the richest nations. But the article specifies the richest 10% of many countries causing more emissions than the poorest 10% of their fellow citizens - and neither the richest nor poorest 10% of those countries are “middle class”. They definitely do not know what “middle” means.
Edit: reading further into the article, they do actually specify that the middle class of many rich countries are in the top 10% globally - anyone earning over £32k/$40k are in the top 10% for the entire global population, despite these being very modest incomes in the UK and US respectively.
I can see how the richest 10% of the entire global population would include a fair chunk of the middle class in the richest nations. But the article specifies the richest 10% of many countries causing more emissions than the poorest 10% of their fellow citizens - and neither the richest nor poorest 10% of those countries are “middle class”. They definitely do not know what “middle” means.
Edit: reading further into the article, they do actually specify that the middle class of many rich countries are in the top 10% globally - anyone earning over £32k/$40k are in the top 10% for the entire global population, despite these being very modest incomes in the UK and US respectively.