HS-ESS3-4

Evaluate or refine a technological solution that reduces impacts of human activities on natural systems.

More Stories in HS-ESS3-4

  1. Tech

    New thermal ‘cloak’ keeps spaces from getting too hot or too cold

     A prototype fabric could help keep cars, buildings and other spaces cooler during heat waves while also reducing greenhouse-gas emissions.

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  2. Tech

    Horses are inspiring this roboticist to build trustworthy robots

    Computer scientist Eakta Jain is looking at human-horse interactions for ideas about how to design robots that work well with people.

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  3. Climate

    For greener toilets and air conditioning, consider saltwater

    Using saltwater would allow coastal cities to save their freshwater for drinking and to reduce their carbon footprints. Some could save money, too.

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  4. Environment

    Fungi help rescue crops being harmed by microplastics

    Microplastics in the soil hinder plant growth. But two finalists at Regeneron ISEF found that fungi and farm waste can reduce the harm.

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  5. Tech

    A new solar-powered gel purifies water in a flash

    The unusual, fruit-inspired structure of this material provides quick filtration that could satisfy people's daily water needs.

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  6. Chemistry

    Chemists have unlocked the secrets of long-lasting Roman concrete

    By searching ancient texts and ruins, scientists found a concrete recipe that could make buildings stronger — and help address climate change.

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  7. Environment

    Sea life may suffer as plastic bits alter metals in water

    This interplay between plastics and metals could affect how each affects the environment — and suggests opportunities for controlling their risks.

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  8. Tech

    Think of this new tech as sunglasses for our windows

    Keeping buildings cool can use a lot of energy. Thanks to quantum computing, engineers designed a coating to cut the warming light that enters windows.

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  9. Climate

    Creating less new stuff could greatly help Earth’s climate

    Instead of throwing unneeded things away, scientists recommend moving to a cycle of reducing, reusing, repairing and remaking old things into new ones.

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