1. Clouds and lightning.

    Alaska thunderstorms may triple with climate change

    The number of thunderstorms in Alaska may triple by later this century because of climate change, increasing the risks of widespread flash flooding, landslides, and lightning-induced wildfires.

    • Climate,
    • Weather

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  2. Photo of city traffic

    Ozone pollution levels dropped early in pandemic

    Ozone in the lower atmosphere fell by 7% on average across the Northern Hemisphere, new research finds.

    • Air Quality

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  3. Colorado River (photo by M. Thomson).

    Monsoon has limited impact on Colorado mountain streamflow

    As snowpack in the Rocky Mountains declines with climate change, a new study warns that summertime rains are unlikely to significantly bolster stream levels.

    • Water

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  4. Emissions from industrial operations affect visibility. (Image by analogicus from Pixabay.)

    COVID-19 lockdowns temporarily raised global temperatures

    The lockdowns and reduced societal activity related to the COVID-19 pandemic affected emissions of pollutants in ways that slightly warmed the planet for several months last year, according to new research led by NCAR.

    • Climate

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  5. Climate model simulation showing hurricane making landfall.

    New NCAR-Wyoming supercomputer to accelerate scientific discovery

    NCAR's next supercomputer will advance Earth system science and help researchers better understand a range of phenomena that affect society.

    • Supercomputing

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