On: London saw a surprising benefit to ultra-low emiss...

[flir]

City of London only has 9k inhabitants. It's very atypical. That's not a good example to draw conslusions about London proper from.

[hi_hi → flir]

Thats kinda the point.

It's atypical, yet it is abundantly clear that "poor" is closely mixed in with "rich".

Are you suggesting that the majority of other affluent boroughs in London and Greater London are exempt from containing Council Estates? Islington, Putney, Wimbledon, Chelsea...