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   PID: hpt/lnx 1.9.0-cur 2019-01-08   
   TID: hpt/lnx 1.9.0-cur 2019-01-08   
    Potent greenhouse gas produced by industry could be readily abated with   
   existing technologies    
    Affordable and available technologies can curb rising nitrous oxide   
   emissions    
      
     Date:   
         July 5, 2023   
     Source:   
         University of Maryland Center for Environmental Science   
     Summary:   
         Researchers have found that one method of reducing greenhouse   
         gas emissions is available, affordable, and capable of being   
         implemented right now. Nitrous oxide, a potent greenhouse gas and   
         ozone-depleting substance, could be readily abated with existing   
         technology applied to industrial sources.   
      
      
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   FULL STORY   
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   Researchers have found that one method of reducing greenhouse gas   
   emissions is available, affordable, and capable of being implemented   
   right now. Nitrous oxide, a potent greenhouse gas and ozone-depleting   
   substance, could be readily abated with existing technology applied to   
   industrial sources.   
      
   "The urgency of climate change requires that all greenhouse gas emissions   
   be abated as quickly as is technologically and economically feasible,"   
   said lead author Eric Davidson, a professor with the University of   
   Maryland Center for Environmental Science. "Limiting nitrous oxide in   
   an agricultural context is complicated, but mitigating it in industry   
   is affordable and available right now. Here is a low-hanging fruit   
   that we can pluck quickly."  When greenhouse gases are released into   
   the atmosphere, they trap the heat from the sun, leading to a warming   
   planet. In terms of emissions, nitrous oxide is third among greenhouse   
   gases, topped only by carbon dioxide and methane. Also known as laughing   
   gas, it has a global warming potential nearly 300 times that of carbon   
   dioxide and stays in the atmosphere for more than 100 years. It also   
   destroys the protective ozone layer in the stratosphere, so reducing   
   nitrous oxide emissions provides a double benefit for the environment   
   and humanity.   
      
   Nitrous oxide concentration in the atmosphere has increased at an   
   accelerating rate in recent decades, mostly from increasing agricultural   
   emissions, which contribute about two-thirds of the global human-caused   
   nitrous oxide. However, agricultural sources are challenging to reduce. In   
   contrast, for the industry and energy sectors, low-cost technologies   
   already exist to reduce nitrous oxide emissions to nearly zero.   
      
   Industrial nitrous oxide emissions from the chemical industry are   
   primarily by- products from the production of adipic acid (used in the   
   production of nylon) and nitric acid (used to make nitrogen fertilizers,   
   adipic acid, and explosives). Emissions also come from fossil fuel   
   combustion used in manufacturing and internal combustion engines used   
   in cars and trucks.   
      
   "We know that abatement is feasible and affordable. The European Union's   
   emissions trading system made it financially attractive to companies to   
   remove nitrous oxide emissions in all adipic acid and nitric acid plants,"   
   said co- author Wilfried Winiwarter of the International Institute for   
   Applied Systems Analysis. "The German government is also helping to fund   
   abatement of nitrous oxide emissions from nitric acid plants in several   
   low-income and middle-income countries."  The private sector could also   
   play a key role in nitrous oxide emissions reduction, encouraged by trends   
   in consumer preferences for purchasing climate- friendly products. For   
   example, 65% of the nitrous emissions embodied in nylon products globally   
   are used in passenger cars and light vehicles. Automobile manufacturers   
   could require supply chains to source nylon exclusively from plants that   
   deploy efficient nitrous oxide abatement technology.   
      
   "Urgent abatement of industrial sources of nitrous oxide" is published   
   in Nature Climate Change by Eric Davidson of the University of Maryland   
   Center for Environmental Science, Spark Climate Solutions, Wilfried   
   Winiwarter of the International Institute of Applied Systems Analysis,   
   Austria, and the Institute for Environmental Engineering, University of   
   Zielona Go'ra, Poland.   
      
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   Story Source: Materials provided by   
   University_of_Maryland_Center_for_Environmental_Science.   
      
   Note: Content may be edited for style and length.   
      
      
   ==========================================================================   
   Journal Reference:   
      1. Eric A. Davidson, Wilfried Winiwarter. Urgent abatement of   
      industrial   
         sources of nitrous oxide. Nature Climate Change, 2023; DOI:   
         10.1038/ s41558-023-01723-3   
   ==========================================================================   
      
   Link to news story:   
   https://www.sciencedaily.com/releases/2023/07/230705105900.htm   
      
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