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Your search has returned 77 articles:
  • Science Visualized

    Air pollution is shaving a year off our average life expectancy

    Breathing dirty air exacts a price — specifically, months, or even years, off of life.

    On average worldwide, air pollution shaves a year off of human life expectancy, scientists report August 22 in Environmental Science & Technology Letters. In more polluted regions of Asia and Africa, lives are shortened by 1.5 to two years on average.

    The study, using 2016 country data from...

    08/22/2018 - 13:35 Health, Pollution
  • Feature

    A freshwater, saltwater tug-of-war is eating away at the Everglades

    The boardwalk at Pa-hay-okee Overlook is a brief, winding path into a dreamworld in Everglades National Park. Beyond the wooden slats, an expanse of gently waving saw grass stretches to the horizon, where it meets an iron-gray sky. Hardwood tree islands — patches of higher, drier ground called hammocks — rise up from the prairie like surfacing swimmers. The rhythmic singing of cricket frogs is...

    08/20/2018 - 09:00 Ecosystems, Earth
  • News

    Wildfires are making extreme air pollution even worse in the northwest U.S.

    The northwestern United States has become an air pollution hot spot — literally.

    Air quality in states from Nevada to Montana is worse than it was 30 years ago on the days with the most extreme air pollution. Bigger and more frequent wildfires that spew plumes of fine particulate matter into the sky are largely to blame, researchers report July 16 in Proceedings of the National Academy...

    07/16/2018 - 15:19 Pollution, Climate
  • Science Stats

    Air pollution is triggering diabetes in 3.2 million people each year

    Air pollution caused 3.2 million new cases of diabetes worldwide in 2016, according to a new estimate.

    Fine particulate matter, belched out by cars and factories and generated through chemical reactions in the atmosphere, hang around as haze and make air hard to breathe. Air pollution has been linked to chronic conditions such as heart disease and diabetes (SN: 9/30/17, p. 18), but this...

    07/09/2018 - 17:11 Health, Pollution
  • News in Brief

    Fleets of self-driving taxis could be choreographed to cut traffic

    Self-driving taxis that use an algorithm to work together like a well-oiled machine could someday cut down on city traffic.

    Researchers have created a computer program that can continually analyze incoming ride-hailing requests sent from a smartphone app and plot the most efficient course for each car in a self-driving fleet to take (SN Online: 11/21/17). Unlike standard taxis, which...

    05/23/2018 - 13:00 Technology, Science & Society
  • News

    Household products make surprisingly large contributions to air pollution

    AUSTIN, Texas — To reduce your impact on air quality, you might expect to trade in your gas-guzzling clunker of a car — but you can also unplug those air fresheners. 

    In urban areas, emissions from consumer goods such as paint, cleaning supplies and personal care products now contribute as much to ozone and fine particulate matter in the atmosphere as do emissions from burning gasoline...

    02/15/2018 - 14:00 Chemistry, Pollution
  • News

    Gassy farm soils are a shockingly large source of these air pollutants

    California’s crops are creating some noxious air.

    The Golden State is at the vanguard in the United States in reducing auto emissions of nitrogen oxide gases, which help produce toxic smog and acid rain. But the NOx pollution problem isn’t limited to auto exhaust. California’s vast agricultural lands — particularly soils heavily treated with nitrogen fertilizers — are now responsible for...

    01/31/2018 - 14:13 Earth, Pollution, Agriculture
  • News in Brief

    Pollution killed 9 million people in 2015

    About one in every six premature deaths worldwide is linked to dirty air, water and soil.

    Most of those deaths are concentrated among the world’s poorest populations, according to a study published online October 19 in the Lancet that documents the health and economic toll of pollution in 2015. In the most severely polluted countries, 25 percent of premature deaths could be attributed to...

    10/20/2017 - 17:50 Pollution, Health
  • Editor's Note

    Nature offers inspiration, and occasionally courage

    When Donald Griffin and Robert Galambos first reported that bats use the ricocheting echoes of sound waves to pilot through the environment, some scientists doubted it was possible. The team’s experiments, conducted in the late 1930s at Harvard University and reported in the early 1940s, coincided with World War II and the proliferation of active sonar systems for use on ships and...
    09/20/2017 - 12:47 Technology, Animals
  • Feature

    The list of diseases linked to air pollution is growing

    To the residents of Donora, Pa., a mill town in a crook of the Monongahela River, the daily haze from nearby zinc and steel plants was the price of keeping their families fed. But on October 27, 1948, the city awoke to an unusually sooty sky, even for Donora. The next day, the high school quarterbacks couldn’t see their teammates well enough to complete a single pass.

    The town was...

    09/19/2017 - 07:00 Pollution, Climate, Health