The Dirty Little Pollution Secret That's Choking Mexico City

  • Outdated emissions controls exacerbate worst smog in 14 years
  • Government, automakers, oil company studying higher standards

Mexico City

Photographer: Susana Gonzalez/Bloomberg

Millions of people in Mexico City are choking on the worst air quality in 14 years, as cars and trucks add to the pollution with their outdated emissions controls. And it’s not as though Mexico lacks access to the best technology.

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