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  1. 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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  2. 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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  3. 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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  4. Small volcanoes, big climate impact: Sarychev Volcano

    Small volcanoes make big impact on climate

    A new study by an NCAR researcher shows that small- to moderate-size volcanoes have helped slow down warming over the last decade, while industrial emissions of Sun-blocking sulfur dioxide over Asia have contributed relatively little to the slowdown.

    • Climate,
    • Air Quality

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  5. Andean glacier melt - NCAR scientist Carl Schmitt on a Peruvian glacier.

    Measuring pollutants on Andean glaciers

    A team of researchers, including NCAR scientist Carl Schmitt, are climbing high in the Peruvian Andes to assess the extent to which the white ice is being darkened by ash and other particulates that are emitted by nearby industrial operations. The dark particles can accelerate glacial melting, eventually threatening runoff that supplies water for millions of South American residents.

    • Climate,
    • Air Quality

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