1. Photo of NCAR scientist Marika Holland explaining changes in Arctic sea ice extent

    Four decades of geoscience

    Geophysical Research Letters, a leading journal in Earth science, is toasting its 40th anniversary this month with an editor-picked retrospective collection of 40 papers, including several with authors from NCAR.

    • Climate,
    • Air Quality

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  2. Hazy skies in Los Angeles as viewed from the Getty Center, 3/18/08

    Climate change threatens to worsen U.S. ozone pollution

    Americans face the risk of a 70 percent increase in unhealthy summertime ozone events by 2050 because of factors related to climate change.

    • Climate,
    • Air Quality

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  3. Arctic sea ice: Regional nuclear conflict could lead to extended global cooling

    Regional nuclear war would have global reach

    A nuclear exchange, even if limited to one region, would have severe atmospheric impacts.

    • Air Quality

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  4. Pollution above Asia: Layer in stratosphere may originate from global sources

    Stratospheric sulfates have human cause

    Scientists link coal, oil, and biomass to a layer of sulfates high above Asia.

    • Air Quality

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  5. NCAR joins massive field campaign to examine summertime air in Southeast

    The five-project field campaign looks at unique features affecting air quality and climate in the region.

    • Air Quality

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