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tailpipe emissions standards

Coverage of tailpipe emissions standards in the Nexus archive.

Earliest in view: Jun 9 · 08:55 UTCMost recent: Jun 9 · 08:55 UTC
Co-mentioned in this coverage
Wildfirestopic1smogtopic1ozonetopic1United Statesplace1Avril Silvaperson1air qualitytopic1
Recent coverage
  • SCIENCEJun 9 · 08:55 UTCINSIDE CLIMATE NEWS
    Wildfires Are Reversing Years of US Air Quality Gains, Study Finds

    A new study finds that wildfires have worsened ozone levels across the United States, reversing about four years of air quality progress. Tailpipe emissions standards had previously reduced smog levels, but longer, more intense fire seasons have erased much of that progress over the last decade.