国际英语资讯:Relaxed energy policies could worsen U.S. air quality: study
<p><span word="WASHINGTON">WASHINGTON</span>, <span word="Oct">Oct</span>. 27-- <span word="A">A</span> <span word="study">study</span> <span word="showed">showed</span> <span word="that">that</span> <span word="the">the</span> <span word="U">U</span>.<span word="S">S</span>. <span word="government">government</span>'<span word="s">s</span> <span word="rollback">rollback</span> <span word="of">of</span> <span word="its">its</span> <span word="climate">climate</span> <span word="change">change</span> <span word="and">and</span> <span word="energy">energy</span> <span word="policy">policy</span> <span word="would">would</span> <span word="lower">lower</span> <span word="the">the</span> <span word="country">country</span>'<span word="s">s</span> <span word="air">air</span> <span word="quality">quality</span> <span word="by">by</span> <span word="increasing">increasing</span> <span word="emissions">emissions</span> <span word="of">of</span> <span word="health">health</span>-<span word="damaging">damaging</span> <span word="ozone">ozone</span>.</p><p><span word="The">The</span> <span word="study">study</span> <span word="published">published</span> <span word="in">in</span> <span word="the">the</span> <span word="latest">latest</span> <span word="edition">edition</span> <span word="of">of</span> <span word="journal">journal</span> <span word="One">One</span> <span word="Earth">Earth</span> <span word="found">found</span> <span word="that">that</span> <span word="with">with</span> <span word="the">the</span> <span word="combination">combination</span> <span word="of">of</span> <span word="loosened">loosened</span> <span word="regulations">regulations</span> <span word="and">and</span> <span word="a">a</span> <span word="warming">warming</span> <span word="climate">climate</span>, 22 <span word="more">more</span> <span word="U">U</span>.<span word="S">S</span>. <span word="counties">counties</span> <span word="would">would</span> <span word="fail">fail</span> <span word="to">to</span> <span word="meet">meet</span> <span word="the">the</span> <span word="current">current</span> <span word="ozone">ozone</span> <span word="safety">safety</span> <span word="standard">standard</span> <span word="in">in</span> 2050.</p><p><span word="Unlike">Unlike</span> <span word="ozone">ozone</span> <span word="in">in</span> <span word="the">the</span> <span word="upper">upper</span> <span word="atmosphere">atmosphere</span>, <span word="which">which</span> <span word="protects">protects</span> <span word="the">the</span> <span word="Earth">Earth</span> <span word="from">from</span> <span word="space">space</span> <span word="radiation">radiation</span>, <span word="ground">ground</span>-<span word="level">level</span> <span word="ozone">ozone</span> <span word="at">at</span> <span word="high">high</span> <span word="concentrations">concentrations</span> <span word="damage">damage</span> <span word="people">people</span>'<span word="s">s</span> <span word="respiratory">respiratory</span> <span word="functions">functions</span> <span word="and">and</span> <span word="reduce">reduce</span> <span word="crop">crop</span> <span word="yields">yields</span>.</p><p><span word="In">In</span> <span word="the">the</span> <span word="past">past</span> <span word="few">few</span> <span word="decades">decades</span>, <span word="regulations">regulations</span> <span word="have">have</span> <span word="prompted">prompted</span> <span word="significant">significant</span> <span word="reductions">reductions</span> <span word="in">in</span> <span word="ground">ground</span>-<span word="level">level</span> <span word="ozone">ozone</span>. <span word="However">However</span>, <span word="it">it</span> <span word="remains">remains</span> <span word="one">one</span> <span word="of">of</span> <span word="the">the</span> <span word="most">most</span> <span word="difficult">difficult</span> <span word="air">air</span> <span word="pollutants">pollutants</span> <span word="to">to</span> <span word="manage">manage</span>.</p><p><span word="Shen">Shen</span> <span word="Huizhong">Huizhong</span> <span word="and">and</span> <span word="his">his</span> <span word="team">team</span> <span word="from">from</span> <span word="the">the</span> <span word="Georgia">Georgia</span> <span word="Institute">Institute</span> <span word="of">of</span> <span word="Technology">Technology</span> <span word="created">created</span> <span word="a">a</span> <span word="computer">computer</span> <span word="model">model</span> <span word="to">to</span> <span word="simulate">simulate</span> <span word="how">how</span> <span word="relaxing">relaxing</span> <span word="energy">energy</span> <span word="policies">policies</span> <span word="would">would</span> <span word="affect">affect</span> <span word="ozone">ozone</span> <span word="levels">levels</span> <span word="through">through</span> 2050.</p><p><span word="In">In</span> <span word="their">their</span> <span word="scenario">scenario</span>, <span word="they">they</span> <span word="assumed">assumed</span> <span word="that">that</span> <span word="several">several</span> <span word="U">U</span>.<span word="S">S</span>. <span word="energy">energy</span> <span word="policies">policies</span>, <span word="the">the</span> <span word="Clean">Clean</span> <span word="Power">Power</span> <span word="Plan">Plan</span>, <span word="Production">Production</span> <span word="Tax">Tax</span> <span word="Credit">Credit</span>, <span word="Investment">Investment</span> <span word="Tax">Tax</span> <span word="Credit">Credit</span>, <span word="and">and</span> <span word="the">the</span> <span word="Corporate">Corporate</span> <span word="Average">Average</span> <span word="Fuel">Fuel</span> <span word="Economy">Economy</span> <span word="standards">standards</span> <span word="on">on</span> <span word="cars">cars</span> <span word="were">were</span> <span word="eased">eased</span>.</p><p><span word="They">They</span> <span word="found">found</span> <span word="that">that</span> <span word="relaxing">relaxing</span> <span word="energy">energy</span> <span word="policies">policies</span> <span word="would">would</span> <span word="add">add</span> 6.5 <span word="percent">percent</span> <span word="more">more</span> <span word="nitrogen">nitrogen</span> <span word="oxides">oxides</span> <span word="into">into</span> <span word="the">the</span> <span word="air">air</span> <span word="compared">compared</span> <span word="to">to</span> <span word="the">the</span> <span word="scenario">scenario</span> <span word="with">with</span> <span word="the">the</span> <span word="current">current</span> <span word="policies">policies</span> <span word="still">still</span> <span word="in">in</span> <span word="place">place</span>. <span word="The">The</span> <span word="nitrogen">nitrogen</span> <span word="oxides">oxides</span> <span word="are">are</span> <span word="precursors">precursors</span> <span word="of">of</span> <span word="ozone">ozone</span>.</p><p><span word="When">When</span> <span word="the">the</span> <span word="team">team</span> <span word="took">took</span> <span word="climate">climate</span> <span word="change">change</span> <span word="into">into</span> <span word="consideration">consideration</span>, <span word="the">the</span> <span word="effect">effect</span> <span word="on">on</span> <span word="ozone">ozone</span> <span word="precursor">precursor</span> <span word="emissions">emissions</span> <span word="was">was</span> <span word="even">even</span> <span word="more">more</span> <span word="substantial">substantial</span>. <span word="A">A</span> <span word="warmer">warmer</span> <span word="climate">climate</span> <span word="will">will</span> <span word="encourage">encourage</span> <span word="the">the</span> <span word="release">release</span> <span word="of">of</span> <span word="volatile">volatile</span> <span word="organic">organic</span> <span word="compounds">compounds</span>, <span word="another">another</span> <span word="ozone">ozone</span> <span word="precursor">precursor</span>, <span word="by">by</span> <span word="plants">plants</span>, <span word="according">according</span> <span word="to">to</span> <span word="the">the</span> <span word="study">study</span>.</p>
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