[Vinnl]

The response was tongue-in-cheek: the commenter implied that the article was insufficient due to the journalist being less intelligent due to living in a polluted city.

[throwawaymath]

Hah, I see it now. Shame you had to spell that out for me :)

[murph-almighty]

The Guardian paradox: if air pollution makes us dumber, how can those who live in air pollution make this discovery?