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E.g., 03/19/2019
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  • drinking water
  • Prosecco vineyard
  • desalination plant in Saudi Arabia
Your search has returned 48 articles:
  • 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
  • Science Stats

    Prosecco production takes a toll on northeast Italy’s environment

    Sorry to burst your bubbly, prosecco lovers, but skyrocketing demand for the sparkling wine might be sapping northeastern Italy’s vineyards of precious soil — 400 million kilograms of it per year, researchers report in a study posted online January 10 at bioRxiv.org.

    That’s a lot of soil, but not an anomaly. Some newer vineyards in Germany, for example, have higher rates of soil loss,...

    01/18/2019 - 13:28 Agriculture, Sustainability
  • News

    Desalination pours more toxic brine into the ocean than previously thought

    Technology meant to help solve the world’s growing water shortage is producing a salty environmental dilemma.

    Desalination facilities, which extract drinkable water from the ocean, discharge around 142 billion liters of extremely salty water called brine back into the environment every day, a study finds. That waste product of the desalination process can kill marine life and...

    01/14/2019 - 10:17 Technology, Sustainability, Oceans
  • News

    Hybrid rice engineered with CRISPR can clone its seeds

    After more than 20 years of theorizing about it, scientists have tweaked a hybrid variety of rice so that some of the plants produce cloned seeds. No plant sex necessary. The feat, described December 12 in Nature, is encouraging for efforts to feed an increasingly crowded world.

    Crossing two good varieties of grain can make one fabulous one, combining the best versions of genes to give...

    12/12/2018 - 15:52 Plants, Genetics, Sustainability
  • News

    A new way to turn saltwater fresh can kill germs and avoid gunk buildup

    A new design for sun-powered desalination technology may lead to longer-lasting devices that produce cleaner water.

    The trick boils down to preventing a device’s components from touching the saltwater. Instead, a lid of light-absorbing material rests above a partially filled basin of water, absorbing sunlight and radiating that energy to the liquid below. That evaporates the water to...

    12/11/2018 - 11:00 Technology, Sustainability
  • News in Brief

    Global carbon dioxide emissions will hit a record high in 2018

    Global carbon dioxide emissions are expected to hit a record high in 2018, despite urgent calls from climate scientists and international groups such as the United Nations to cut back.

    Worldwide, fossil fuel use is projected to pump 2.7 percent more CO2 into the atmosphere in 2018 compared with 2017. Last year, such emissions contributed 9.9 gigatons of carbon. The data are presented in...

    12/06/2018 - 18:09 Climate, Sustainability, Science & Society
  • News

    New devices could help turn atmospheric CO2 into useful supplies

    New chemical-recycling devices might help combat climate change by making good use of heat-trapping gas produced by burning fossil fuels.

    These electrochemical cells convert carbon monoxide into useful compounds much more efficiently than their predecessors, researchers report online October 25 in Joule. If combined with existing technology that harvests carbon monoxide from carbon...

    10/30/2018 - 06:00 Chemistry, Sustainability
  • News

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

    At the medieval city of Angkor, flooding after decades of scant rainfall triggered a devastating breakdown of the largest water system in the preindustrial world, new evidence suggests.

    Intense monsoon rains bracketed by decades of drought in the 1400s set off a chain reaction of failures in Angkor’s interconnected water network, computer simulations indicate. The climate-induced...

    10/17/2018 - 14:00 Archaeology, Climate, Sustainability
  • News in Brief

    This reflective paint could keep sunbaked buildings cool

    A new polymer-based paint that reflects nearly all incoming sunlight could help keep buildings, cars, airplanes and other sunbaked structures cool.

    This polymer paint, described online September 27 in Science, can be applied to various surfaces, including plastics, metals and wood. It also could be fashioned into recyclable tarpaulins for covering homes, cars or other enclosed spaces....

    09/28/2018 - 09:00 Materials, Technology, Sustainability
  • Feature

    Can science build a better burger?

    This isn’t as extreme as if the federal government had decided to regulate time travel. But it’s almost as surprising. The U.S. Food and Drug Administration is taking the first step toward rules for growing nutritious, delicious, juicy meat in labs, not farms.

    The notion of growing, say, just the beef instead of the whole cow has been floating around since at least the 1890s. This sci-fi...

    09/20/2018 - 12:30 Agriculture, Climate, Sustainability, Nutrition