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  • 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
  • News in Brief

    A new material harnesses light to deice surfaces

    A new material that converts light into heat could be laminated onto airplanes, wind turbines, rooftops and offshore oil platforms to help combat ice buildup.

    This deicer, called a photothermal trap, has three layers: a top coating of a ceramic-metal mix that turns incoming light into thermal energy, a middle layer of aluminum that spreads this heat across the entire sheet — warming up...

    08/31/2018 - 14:00 Materials, Sustainability
  • News in Brief

    A filter that turns saltwater into freshwater just got an upgrade

    Smoothing out the rough patches of a material widely used to filter saltwater could make producing freshwater more affordable, researchers report in the Aug. 17 Science.

    Desalination plants around the world typically strain salt out of seawater by pumping it through films made of polyamide — a synthetic polymer riddled with tiny pores that allow water molecules to squeeze through, but...

    08/16/2018 - 14:00 Materials, Chemistry, Sustainability