HS-LS2-7

Design, evaluate, and refine a solution for reducing the impacts of human activities on the environment and biodiversity.

More Stories in HS-LS2-7

  1. 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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  2. Animals

    Chicago’s Rat Hole? Science concludes it’s likely not from a rat

    Researchers employed tools of paleontology to analyze the iconic landmark — a sidewalk critter crater made when a mystery rodent fell into wet concrete.

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  3. Environment

    Nuclear weapons tests many decades ago have left a radioactive legacy

    Decades of aboveground nuclear weapons tests, starting in the 1950s, lightly littered the planet with toxic fallout, which appears to have sickened some people.

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  4. Animals

    Birds are singing longer, thanks to light pollution

    In light-polluted areas, birds spend an average of 50 minutes more per day singing. It’s unclear how that extra time might hurt or help the birds.

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  5. Ecosystems

    There’s life beneath the snow — but it’s at risk of melting away

    The organisms that make winter homes in this subnivium help forests thrive year-round. But climate change is making this ecosystem disappear.

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  6. Animals

    Surprise! These animals can help fight climate change

    Some animals help fight climate change by boosting the amount of carbon dioxide that plants, algae and bacteria absorb from the atmosphere.

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  7. Environment

    To limit pollution, new recipe makes plastic a treat for microbes

    Microplastics made from fossil fuels take centuries to disappear. But the plant- and algae-based plastic can break down in weeks to months.

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  8. Chemistry

    Air pollution can make it harder for pollinators to find flowers

    Pollutants that build up in night air can break down the scents that attract pollinating hawkmoths to primrose blooms, disrupting their pollination.

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  9. Animals

    Which way is up? Insects may lose track near artificial lights

    Flying insects may use light to figure out where the sky is. But artificial lights can send them veering off course, high-speed video suggests.

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