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Kirk Johnson

Coverage of Kirk Johnson in the Nexus archive.

Earliest in view: Jul 17 · 22:42 UTCMost recent: Jul 17 · 22:42 UTC
Co-mentioned in this coverage
Smithsonian National Museum of Natural Historyorganization1Brian Toonperson1University of Colorado Boulderorganization1Ken MacLeodperson1University of Missouriorganization1Canadian wildfirestopic1Yucatán Peninsulaplace1
Recent coverage
  • SCIENCEJul 17 · 22:42 UTCTHE ATLANTIC
    Just Ask the Dinosaurs How Bad Air Quality Can Get

    Smoke from Canadian wildfires has severely degraded air quality in U.S. cities like Philadelphia and Detroit. The article compares this to the asteroid impact 66 million years ago, which caused global darkness, wildfires, and a dust cloud that blocked sunlight, leading to mass extinction.

Kirk Johnson · Dossier · The Nexus