Earth

  1. Climate

    A thousands-year-old log demonstrates how burying wood can fight climate change

    Burying wood can store carbon for thousands of years, according to an analysis of an ancient log unearthed in Canada.

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  2. Earth

    Reactive dust from Great Salt Lake may have health consequences

    When inhaled, metals left by the shrinking lake could cause inflammation. Experts say more studies are needed to understand the impact.

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  3. Oceans

    A vital ocean current is stable, for now

    The Florida Current, a major contributor to a system of ocean currents that regulate Earth’s climate, has not weakened as much as previously reported.

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  4. Agriculture

    ‘Smart lighting’ might make vertical farming more affordable

    A new computer program adjusts grow lights to cut down on electric bills without sacrificing photosynthesis.

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  5. Environment

    A biogeochemist is tracking the movements of toxic mercury pollution

    Exposing the hidden movements of mercury through the environment can help reduce human exposure.

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  6. Climate

    Climate change could double U.S. temperature-linked deaths by mid-century

    Each year, roughly 8,000 deaths in the United States are associated with extreme temperatures. And as temperatures rise, this number could swell.

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  7. Climate

    Earth’s ancient ‘greenhouse’ conditions were hotter than thought

    A timeline of 485 million years of Earth’s surface temperatures shows ancient greenhouse conditions were hotter than scientists thought.

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  8. Climate

    Can solar farms and crop farms coexist?

    Researchers working in the field of agrivoltaics are studying how to combine solar farming with grazing, crop production or ecological restoration.

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  9. Planetary Science

    Scientists find a long-sought electric field in Earth’s atmosphere

    The Earth’s ambipolar electric field is weak but strong enough to control the shape and evolution of the upper atmosphere.

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  10. Life

    Mega El Niños kicked off the world’s worst mass extinction

    Long-lasting, widespread heat and weather extremes may have caused the Great Dying extinction event 252 million years ago.

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  11. Environment

    How much is climate change to blame for extreme weather?

    Scientists can estimate how much more likely or severe some past natural disasters were due to human-caused climate change. Here's how.

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  12. Health & Medicine

    California droughts may help valley fever spread

    Droughts temporarily dampen the number of valley fever cases across the state, but cases spike in the years after rains return.

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