Earth

  1. photo of a crowd of people in New York City
    Humans

    The world population has now reached 8 billion

    In a first, the global population surpassed this milestone on November 15, according to a projection from the United Nations.

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  2. Fishers pull in a large Atlantic bluefin tuna from choppy seas
    Oceans

    Sharks face rising odds of extinction even as other big fish populations recover

    Over the last 70 years, large ocean fishes like tuna and marlin have been recovering from overfishing. But sharks continue to decline toward extinction.

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  3. An aerial photo of the Nioghalvfjerdsfjord glacier
    Climate

    Greenland’s frozen hinterlands are bleeding worse than we thought

    An inland swath of the Northeast Greenland Ice Stream is accelerating and thinning. It could contribute much more to sea level rise than estimated.

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  4. a tree trunk showing many rings and cracks
    Earth

    Catastrophic solar storms may not explain shadows of radiation in trees

    Tree rings record six known Miyake events — spikes in global radiation levels in the past. The sun, as long presumed, might not be the sole culprit.

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  5. Wind turbines stand near a coal-fired power plant in Germany, with steam rising from the plant's cooling towers.
    Climate

    Wind turbines could help capture carbon dioxide while providing power

    Turbulent wakes from wind turbines can concentrate CO2 from cities and factories, making it easier to remove the greenhouse gas from the atmosphere.

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  6. Photo of Typhoon Hinnamnor from space as it swirls in the western Pacific Ocean.
    Earth

    Particles from space provide a new look inside cyclones

    Cosmic rays that smash into the atmosphere make muons that are sensitive to changing air pressure inside storms.

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  7. Iceberg A68a in the Southern Ocean during July 2020
    Climate

    Here’s what happened to the Delaware-sized iceberg that broke off Antarctica

    The powerful pull of currents in the Southern Ocean probably pulled apart the largest remnant of a massive iceberg that split off Antarctica in 2017.

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  8. An elevation map of Montana near Yellowstone National Park with high elevation on the right and low elevation on the left
    Earth

    Landslides shaped a hidden landscape within Yellowstone

    Scientists have used lasers to get a detailed view of the national park’s topography, and they’ve spotted more than a thousand landslides.

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  9. Color-enhanced scanning electron micrograph of the fungus Aspergillus nidulans shows fungal growths that look like broccoli clusters
    Microbes

    How fungi make potent toxins that can contaminate food

    Genetically engineering Aspergillus fungi to delete certain proteins stops the production of mycotoxins that can be dangerous to human health.

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  10. The Rogue River with trees and rocks on either side.
    Environment

    Heat waves in U.S. rivers are on the rise. Here’s why that’s a problem

    In recent years, heat waves in U.S. rivers have gotten more frequent, causing trouble for fish, plants and water quality.

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  11. Oil from the Deepwater Horizon disaster floats atop the Gulf of Mexico
    Earth

    50 years ago, scientists found a new way to clean up oil spills

    In the 1970s, researchers added chemicals to the list of oil spill cleanup methods. Soon, they may add microbes.

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  12. photo of people gathered around a
    Animals

    Tree-climbing carnivores called fishers are back in Washington’s forests

    Thanks to a 14-year reintroduction effort, fishers, or “tree wolverines,” are once again climbing and hunting in Washington’s forests after fur trapping and habitat loss wiped them out.

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