Earth

  1. Agriculture

    Healthy soils are life-giving black gold

    Scientists explain why everyone needs to value the soils beneath our feet — and why we should not view them as dirt.

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  2. Agriculture

    Soil (and its inhabitants) by the numbers

    Teeming with life, soils have more going on than most of us realize.

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  3. Environment

    What you can do to improve soils

    Soils are the life-sustaining structures under our feet. Here are some tips for keeping soils healthy. First rule of thumb: Give more than you take.

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  4. Chemistry

    Extreme pressure? Diamonds can take it

    Diamond retains its structure even at extreme pressures, which could reveal how carbon behaves in the cores of some exoplanets.

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  5. Climate

    Can wildfires cool the climate?

    Severe wildfires are becoming more common. Science is showing that the tiny particles they release into the air can alter Earth’s temperature — sometimes cooling it.

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  6. Earth

    Explainer: What are aerosols?

    We may not see them, but tiny particles and droplets cloud the air, affecting its properties. Some may be pollutants, others all-natural products.

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  7. Climate

    2020 was warmest year on record for Earth’s oceans

    2020 continued the trend of record-breaking heat for the world’s oceans. The three previous warmest years on record were 2019, 2017 and 2018.

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  8. Earth

    Let’s learn about snow

    Snow is more than just frozen water vapor. Scientists are studying everything from its shape to other planets where snowflakes fall.

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  9. Animals

    Choked by bacteria, some starfish are turning to goo

    For years, researchers thought gooey, dying starfish were infected. Instead, these sea stars are suffocating. And bacteria may be behind it all.

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  10. Climate

    Analyze This: 2020 ties with 2016 for hottest year on record

    Last year capped the warmest decade on record. It coincided with a growing increase of warming greenhouse gases in Earth’s atmosphere.

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  11. Earth

    Space station sensors saw how weird ‘blue jet’ lightning forms

    A mysterious type of lightning in the upper atmosphere has been traced to a brief, bright flash of light at the top of a storm cloud.

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  12. Environment

    Unmasking the pandemic’s pollution problem

    Discarding all the materials people use to protect themselves from COVID-19 has created a growing environmental problem.

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