Earth

  1. Climate

    Arctic sea ice hits record wintertime low

    Warm temperatures and heat waves reduced sea ice extent in the Arctic to its smallest maximum extent ever seen.

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  2. Physics

    To understand rivers, let physics be your guide

    Where the River Flows unites physics and environmental science to explain Earth’s waterways.

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  3. Earth

    Remnants of Earth’s original crust preserve time before plate tectonics

    Canadian rocks containing bits from 4.2 billion years ago suggest that full-fledged plate tectonics had a late start.

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  4. Climate

    Changing climate could worsen foods’ nutrition

    Climate change could aggravate hidden hunger by sapping micronutrients from soils and plants, reducing nutrition in wheat, rice and other crops.

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  5. Genetics

    How to grow toxin-free corn

    Corn genetically altered to produce specialized molecules may prevent a fungus from tainting it with carcinogenic toxins.

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  6. Earth

    Warming soils may belch much more carbon

    New measurements suggest soils below 15 centimeters deep could play a sizable role in boosting carbon emissions as the planet warms.

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  7. Agriculture

    Fleets of drones could pollinate future crops

    Chemist Eijiro Miyako turned a lab failure into a way to rethink artificial pollination.

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  8. Ecosystems

    Invasive species, climate change threaten Great Lakes

    In The Death and Life of the Great Lakes, a journalist chronicles the lakes’ downward spiral and slow revival.

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  9. Earth

    Earth’s mantle may be hotter than thought

    Earth’s mantle is warmer than previously thought, suggests a new experiment that better accounts for water content in rocks.

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  10. Planetary Science

    Saturn’s ‘Death Star’ moon may not conceal an ocean after all

    A lack of cracks on Mimas suggests that the icy moon of Saturn doesn’t conceal a subsurface ocean of liquid water.

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  11. Planetary Science

    Saturn’s ‘Death Star’ moon may not conceal ocean after all

    A lack of cracks on Mimas suggests that the icy moon of Saturn doesn’t conceal a subsurface ocean of liquid water.

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  12. Environment

    Most fish turned into fishmeal are species that we could be eating

    Millions of tons of food-grade fish are turned into fishmeal for aquaculture and agriculture.

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