Pollution

  1. Environment

    Humans’ stuff vastly outweighs humans

    The human-made technosphere weighs 30 trillion tons and surpasses the natural biosphere in mass and diversity, researchers estimate.

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  2. Earth

    Year in review: Ozone hole officially on the mend

    Research this year confirms that the Antarctic ozone hole is healing — an international success attributed to cooperation and new technologies.

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  3. Environment

    Ocean plastic emits chemical that may trick seabirds into eating trash

    Some seabirds might be eating plastic because it emits a chemical that smells like food.

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  4. Health & Medicine

    50 years ago, noise was a nuisance (it still is)

    In 1966, scientists warned of the physical and psychological dangers of a louder world.