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E.g., 02/21/2019
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  • News

    Tidal floods driven by climate change may hurt small businesses

    WASHINGTON — Sea level rise, driven by climate change, is causing increased flooding during high tides along much of the U.S. coastline. Though such floods are usually minor, a new study suggests that car traffic patterns could help reveal how floods harm an area’s business revenues.

    Tidal flooding events “are not one in a hundred years or one in a thousand years. They’re once a week,”...

    02/19/2019 - 06:00 Climate, Oceans, Science & Society
  • News

    Muons reveal the whopping voltages inside a thunderstorm

    An invisible drizzle of subatomic particles has shown that thunderstorms may store up much higher electric voltages than we thought.

    Using muons, heavier relatives of electrons that constantly rain down on Earth’s surface, scientists probed the insides of a storm in southern India in December 2014. The cloud’s electric potential — the amount of work necessary to move an electron from one...

    02/15/2019 - 07:00 Earth, Particle Physics
  • News

    Climate change could increase foodborne illness by energizing flies

    Warmer springs and summers could make house flies friskier, spreading diarrhea-causing bacteria to more places. As a result, foodborne Campylobacter infections could increase with climate change, proposes epidemiologist Melanie Cousins of the University of Waterloo in Canada. 

    Cousins’ computer simulation, still a proof-of-concept version, focuses on how the warm weather surge in house...

    02/14/2019 - 09:00 Climate, Health
  • 50 years ago, DDT pushed peregrine falcons to the edge of extinction

    Fierce and swift, steel blue in color and called the world’s most perfect flying machine, the peregrine falcon is heading toward extinction in North America. The reason: DDT. Perilously high levels of the pesticide and related chemicals have been found in the eggs, fat and tissues of the birds…. [The falcons] are not picking up the DDT directly, but get it by eating other birds which...
    02/14/2019 - 07:00 Animals, Conservation, Toxicology
  • News in Brief

    A new 2-D material uses light to quickly and safely purify water

    Using light, a prototype “green” material can purify enough daily drinking water for four people in just one hour. In tests, it killed nearly 100 percent of bacteria in 10 liters of water, researchers report February 7 in Chem.

    This new material, a 2-D sheet of graphitic carbon nitride, is a photocatalyst: It releases electrons when illuminated to create destructive oxygen-based...

    02/12/2019 - 15:30 Technology, Sustainability
  • News in Brief

    Greenland may have another massive crater hiding under its ice

    Greenland’s ice may be hiding more than one crater left by long-ago meteorite impacts.

    An analysis of satellite and airborne images of the topography beneath the ice sheet has revealed a large, craterlike structure buried beneath two kilometers of ice. It’s just 183 kilometers southeast of Hiawatha, another possible large impact crater described in November (SN: 12/8/18, p. 6). The...

    02/12/2019 - 10:06 Earth
  • News

    An Antarctic expedition will search for what lived under the Larsen C ice shelf

    Maybe the fourth time’s the charm. On February 9, an international team of scientists is embarking on yet another mission to hunt for ocean life that may have once dwelled in the shadow of a giant iceberg (SN Online: 10/13/17).  The scientists, led by researchers at the Alfred Wegener Institute in Bremerhaven, Germany, are headed to the Larsen C ice shelf on the Antarctic Peninsula, where a...

    02/08/2019 - 14:59 Climate, Oceans, Earth
  • News

    2018 was the fourth-hottest year on record, and it’s getting even hotter

    Overall, 2018 was the fourth-warmest year on record, and climate change trends suggest that temperatures will only continue to climb, scientists said February 6 during a joint news conference by the National Oceanic and Atmospheric Administration and NASA.

    The agencies’ data show that global atmospheric temperatures in 2018 were on average 0.79 degrees Celsius warmer than the average...

    02/06/2019 - 18:48 Climate, Oceans, Earth
  • News

    Collapsing ice cliffs may not contribute to sea level rise

    Sea level rise over the next century won’t get a feared boost from Antarctic ice cliffs crumbling into the ocean like dominoes, a new study suggests.

    The finding, published February 7 in Nature, is based on a new statistical analysis showing that such a rapid collapse of marine ice cliffs in Antarctica was extremely unlikely to have happened in the past, even during some of Earth’s...

    02/06/2019 - 15:26 Climate, Oceans
  • Film

    ‘The Human Element’ makes the impacts of climate change feel real

    Climate change, extreme weather events and debates over climate mitigation strategies dominated the news for much of the last year. Yet climate scientists continually wrestle with how best to talk about these issues: Should discussions of climate change appeal directly to people’s emotions, whether fear or anger or even hope? Or are data-driven discussions the way to go?

    ...
    02/04/2019 - 06:00 Climate, Science & Society