1. Expanding seas

    Even if climate mitigation efforts succeed, current warming trends commit us to centuries of sea level rise.

    • Climate

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  2. Map showing area with reduced carbon emissions

    Reducing traffic at 2008 Olympics yielded large cut in CO2

    The effort to improve air quality during the 2008 summer games enabled researchers to quantify the link between traffic and carbon dioxide.

    • Climate

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  3. Climate change in cities: Vulnerabilities and strengths

    A new meta-analysis highlights the shortcomings of vulnerability studies and points to a more integrative way forward.

    • Climate

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  4. Power boost for volcanoes

    Sulfate gases emitted by the Nabro volcano boosted stratospheric particles and gas across the entire Northern Hemisphere in 2011.

    • Climate,
    • Air Quality

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  5. Emperor penguins.

    Emperor penguins threatened by Antarctic sea ice loss

    Colony of world's largest penguins may decline dramatically as Antarctic sea ice recedes this century, new study indicates.

    • Climate

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