In other parts of the planet:

Dramatic fall in London’s levels of deadly pollutants after Ulez expansion

  People in London have been breathing significantly cleaner air since the expansion of the ultra low emission zone (Ulez), a study has found.

  Levels of deadly pollutants that are linked to a wide range of health problems – from cancer to impaired lung development, heart attacks to premature births – have dropped, with some of the biggest improvements coming in the capital’s most deprived areas.

HN: https://news.ycombinator.com/item?id=43288041

Who'd have thought vehicle emissions were so bad and that life could be better by reducing usage in dense urban areas?

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I think rules as a concept are kinda under attack. This ranks really below my radar on shit to care about in the current situation.

Is there a steelmanned argument on why this matters for anyone atm?

Zero emissions sounds like a silly goal anyway, 80/20 and all that.