To communicate what fact? That some random people on the street can't guesstimate carbon footprints very well?
This is the kind of thing that makes it on to the news because it connects something abstract with everyday people.
> The vast majority of participants across the four countries overestimated the average personal carbon footprint of the poorest 50% and underestimated those of the richest 10% and 1%.
Edit: are you an LLM?