Environment

  1. Environment

    Engineers are plugging holes in drinking water treatment

    Drinking water quality has come a long way in the past hundred years — but challenges remain.

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  2. Environment

    Car tires and brake pads produce harmful microplastics

    Scientists surveyed tiny airborne plastics near German highways and found that bits of tires, brake pads and asphalt make up most of the particles.

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  3. Chemistry

    New devices could help turn atmospheric CO2 into useful supplies

    New electrochemical cells transform carbon monoxide into useful chemical compounds like ethylene and acetate much more efficiently than their predecessors.

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  4. Archaeology

    The water system that helped Angkor rise may have also brought its fall

    A complex water system magnified flooding’s disruption of the medieval Cambodian city of Angkor.

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  5. Environment

    We’re probably undervaluing healthy lakes and rivers

    Clean water legislation often doesn’t seem like a good deal on paper. Here’s why that may be misleading.

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  6. Materials Science

    This reflective paint could keep sunbaked buildings cool

    A new type of polymer coating that reflects sunlight to control heat could supplement or replace air conditioning systems.

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  7. Planetary Science

    Readers contemplate water on Mars and more

    Readers had questions about the significance of finding water on mars, air pollution from wildfires and spray-on sensors.

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  8. Agriculture

    Can science build a better burger?

    Researchers hope to replace whole animal agriculture and feed the world with lab-made meats or plants.

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  9. Ecosystems

    Confused mayflies wreak havoc on a Pennsylvania bridge

    Cleaning a river in central Pennsylvania brought back mayflies, which now pose a threat to motorists crossing a bridge.

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  10. Oceans

    A massive net is being deployed to pick up plastic in the Pacific

    As the Ocean Cleanup project embarks, critics remain unconvinced that scooping up debris is the best way to solve the ocean’s plastic problem.

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  11. Materials Science

    A new material harnesses light to deice surfaces

    A new sun-powered material could someday melt the ice off airplane wings, wind turbines and rooftops.

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  12. Health & Medicine

    Air pollution is shaving a year off our average life expectancy

    The first country-by-country look at how dirty air affects when we die shows it can have more impact on mortality than breast or lung cancer.

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