Earth

  1. puffadder shyshark
    Life

    Ocean acidification could degrade sharks’ tough skin

    Nine weeks of exposure to acidic seawater corroded the toothlike denticles that make up a puffadder shyshark’s skin, a small experiment found.

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  2. whimbrel
    Earth

    Climate change may be why birds are migrating earlier across the United States

    Birds are migrating earlier in recent decades in the United States, which could disrupt feeding or nesting cycles.

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  3. Amazon fires
    Animals

    A year of big numbers startled the world into talking about nature

    One million species are at risk. Three billion birds have been lost. Plus surges in Amazon burning.

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  4. youth climate activists
    Climate

    Record-breaking heat amplified waves of student climate protests in 2019

    While the world experienced record-breaking heat, Greta Thunberg and other activists pushed decision makers to take climate change seriously.

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  5. algal bloom
    Earth

    Flooding Earth’s atmosphere with oxygen may not have needed a triggering event

    Building an oxygen-rich world doesn’t require volcanism, supercontinent breakups or the rise of land plants — just nutrient cycling, a study finds.

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  6. Arctic
    Climate

    How the Arctic’s poor health affects everyday life

    A new NOAA report features testimony from indigenous communities in Alaska who are weathering the impacts of Arctic warming.

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  7. flash flooding in Ellicott City, Md.
    Earth

    Fingerprints of climate change are increasingly appearing in extreme weather

    A new report finds evidence that some of 2018’s extreme weather events were linked to human-caused climate change.

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  8. Columbia glacier
    Climate

    See how an Alaskan glacier has shrunk over time

    Scientists have created a time-lapse series of images of the retreat of an Alaskan glacier using NASA and U.S. Geological Survey Landsat data.

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  9. Pan de Azúcar National Park
    Ecosystems

    A newly found Atacama Desert soil community survives on sips of fog

    Lichens and other fungi and algae unite to form “grit-crust” on the dry soil of Chile’s Atacama Desert and survive on moisture from coastal fog.

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  10. ocean glider
    Oceans

    Stealthy robots with microphones could improve maps of ocean noise

    Recordings from underwater microphones on stealthy robotic gliders could create a better “soundscape” of noises throughout the ocean, researchers say.

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  11. Earth

    Climate-warming CO₂ emissions will hit a record high in 2019

    Despite countries adopting renewable power sources and coal use falling slightly, oil and gas use are pushing global carbon dioxide emissions to record heights.

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  12. Climate protest
    Climate

    Countries urgently need to ramp up emissions cuts to meet climate targets

    A new U.N. report finds that pledged emissions cuts aren’t nearly enough to limit warming to “well below” 2 degrees Celsius by 2100.

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