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  1. Simone Tilmes

    Stratospheric injections to counter global warming could damage ozone layer

    A much-discussed idea to offset global warming by injecting sulfate particles into the stratosphere would have a drastic impact on Earth's protective ozone layer.

    • Climate

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  2. Jennifer Kay

    Arctic ice more vulnerable to sunny weather, new study shows

    The shrinking expanse of Arctic sea ice is increasingly vulnerable to summer sunshine, new research concludes.

    • Climate

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  3. Photograph of Tom Wigley

    Emission reduction assumptions for carbon dioxide overly optimistic, study says

    Reducing global emissions of carbon dioxide (CO2) over the coming century will be more challenging than society has been led to believe, according to a new research commentary.

    • Climate

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  4. Photograph of yellow flowere, close-up, green background

    Volunteers across nation to track climate clues in spring flowers

    A nationwide initiative starting tomorrow will enable volunteers to track climate change by observing the timing of flowers and foliage.

    • Education + Outreach,
    • Climate

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  5. Photograph of a prairie with red barn in the distance, blue sky

    Native Americans, scientists to discuss climate change at landmark symposium

    Leading representatives from indigenous and scientific communities will take part in a landmark climate change symposium at NCAR in Boulder.

    • Climate

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