Earth

More Stories in Earth

  1. Oceans

    The sea surface covered by seaweed is now as big as South America

    The first global mapping of macroalgae blooms in the ocean, last year, reveals rapid growth and a new record for the area seaweed blankets.

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  2. Ecosystems

    The Okefenokee’s dark waters hold secrets about climate and more

    This Georgia peat swamp’s vast stores of carbon and water are under threat from mining and pollution. Scientists and locals are fighting to protect it.

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  3. Science & Society

    Volcanic ash might have helped spread the Black Death to Europe

    A volcanic eruption might have triggered events that led Italy to import grain — food that arrived in ships infested with plague-infected rats.

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  4. Earth

    Build your own seismograph with this science activity

    By recording earthquakes, seismographs help scientists better understand and hopefully predict quakes.

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  5. Physics

    Scientists Say: Equilibrium

    This steady state may look like a total standstill, but it’s actually an equal opposition of forces.

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  6. Climate

    Microbes that dwell in tree bark devour major climate gases

    Hidden in plain sight, this huge community of tree-bark microbes dines on gases — such as methane — that warm Earth’s atmosphere.

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  7. Environment

    Antarctica faces a green and weedy future

    Warming is allowing alien species to invade a land that had been isolated for 30 million years. They now threaten local ecosystems unique to Antarctica.

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  8. Climate

    As winters warm, athletes must cope with harder snow and tricky ice

    Ice arenas and artificial snow now dominate the winter Olympics. Athletes there — and everywhere — may need to adjust how they train and perform.

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  9. Earth

    Experiment: How does the tilt of Earth’s axis affect the seasons?

    Seasons have nothing to do with Earth’s distance from the sun. The real reason for the seasons is the tilt of Earth’s axis.

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