考研英语报刊文章阅读及剖析十二
<p> 考研英语报刊文章阅读及剖析(12)</p><p> <span word="Is">Is</span> <span word="Earth">Earth</span> <span word="Getting">Getting</span> <span word="Darker">Darker</span>?</p><p> <span word="The">The</span> <span word="sun">sun</span> <span word="is">is</span> <span word="not">not</span> <span word="growing">growing</span> <span word="weaker">weaker</span>, <span word="yet">yet</span> <span word="its">its</span> <span word="light">light</span> <span word="appears">appears</span> <span word="to">to</span> <span word="be">be</span> <span word="dimming">dimming</span>. <span word="Between">Between</span> 1960 <span word="and">and</span> 1990, <span word="some">some</span> <span word="scientists">scientists</span> <span word="believe">believe</span>, <span word="the">the</span> <span word="amount">amount</span> <span word="of">of</span> <span word="solar">solar</span> <span word="radiation">radiation</span> <span word="reaching">reaching</span> <span word="Earth">Earth</span> <span word="s">s</span> <span word="surface">surface</span> <span word="may">may</span> <span word="have">have</span> <span word="declined">declined</span> <span word="as">as</span> <span word="much">much</span> <span word="as">as</span> 10%--<span word="and">and</span> <span word="in">in</span> <span word="some">some</span> <span word="places">places</span>, <span word="Hong">Hong</span> <span word="Kong">Kong</span>, <span word="for">for</span> <span word="example">example</span>, <span word="more">more</span> <span word="than">than</span> 35%.</p><p> <span word="What">What</span> <span word="was">was</span> <span word="going">going</span> <span word="on">on</span>? <span word="Well">Well</span>, <span word="it">it</span> <span word="appears">appears</span> <span word="that">that</span> <span word="increased">increased</span> <span word="air">air</span> <span word="pollution">pollution</span> <span word="during">during</span> <span word="those">those</span> 30 <span word="years">years</span>--<span word="over">over</span> <span word="Asia">Asia</span>, <span word="in">in</span> <span word="particular">particular</span>--<span word="with">with</span> <span word="the">the</span> <span word="help">help</span>, <span word="perhaps">perhaps</span>, <span word="of">of</span> <span word="some">some</span> <span word="increased">increased</span> <span word="cloudiness">cloudiness</span>, <span word="may">may</span> <span word="have">have</span> <span word="exerted">exerted</span> <span word="a">a</span> <span word="cooling">cooling</span> <span word="influence">influence</span> <span word="on">on</span> <span word="the">the</span> <span word="surface">surface</span> <span word="of">of</span> <span word="the">the</span> <span word="planet">planet</span> <span word="even">even</span> <span word="as">as</span> <span word="carbon">carbon</span> <span word="dioxide">dioxide</span> <span word="and">and</span> <span word="other">other</span> <span word="greenhouse">greenhouse</span> <span word="gases">gases</span> <span word="were">were</span> <span word="encouraging">encouraging</span> <span word="the">the</span> <span word="atmosphere">atmosphere</span> <span word="to">to</span> <span word="warm">warm</span>. <span word="The">The</span> <span word="impacts">impacts</span> <span word="of">of</span> <span word="that">that</span> <span word="tug">tug</span>-<span word="of">of</span>-<span word="war">war</span> <span word="on">on</span> <span word="the">the</span> <span word="climate">climate</span> <span word="system">system</span> <span word="could">could</span> <span word="be">be</span> <span word="devilishly">devilishly</span> <span word="difficult">difficult</span> <span word="to">to</span> <span word="untangle">untangle</span>. <span word="At">At</span> <span word="the">the</span> <span word="same">same</span> <span word="time">time</span>, <span word="no">no</span> <span word="task">task</span> <span word="could">could</span> <span word="be">be</span> <span word="more">more</span> <span word="urgent">urgent</span>. <span word="For">For</span> <span word="if">if</span> <span word="global">global</span> <span word="pollution">pollution</span> <span word="has">has</span> <span word="helped">helped</span> <span word="keep">keep</span> <span word="global">global</span> <span word="warming">warming</span> <span word="in">in</span> <span word="check">check</span>, <span word="says">says</span> <span word="Veerabhadran">Veerabhadran</span> <span word="Ramanathan">Ramanathan</span>, <span word="an">an</span> <span word="atmospheric">atmospheric</span> <span word="scientist">scientist</span> <span word="at">at</span> <span word="the">the</span> <span word="University">University</span> <span word="of">of</span> <span word="California">California</span> <span word="at">at</span> <span word="San">San</span> <span word="Diego">Diego</span>, <span word="then">then</span> <span word="the">the</span> <span word="full">full</span> <span word="impact">impact</span> <span word="of">of</span> <span word="the">the</span> <span word="buildup">buildup</span> <span word="of">of</span> <span word="greenhouse">greenhouse</span> <span word="gases">gases</span> <span word="has">has</span> <span word="yet">yet</span> <span word="to">to</span> <span word="be">be</span> <span word="felt">felt</span>. <span word="This">This</span> <span word="week">week</span>, <span word="at">at</span> <span word="the">the</span> <span word="American">American</span> <span word="Geophysical">Geophysical</span> <span word="Union">Union</span> <span word="meeting">meeting</span> <span word="in">in</span> <span word="Montreal">Montreal</span>, <span word="Ramanathan">Ramanathan</span> <span word="and">and</span> <span word="others">others</span> <span word="will">will</span> <span word="be">be</span> <span word="presenting">presenting</span> <span word="the">the</span> <span word="latest">latest</span> <span word="data">data</span> <span word="on">on</span> <span word="the">the</span> <span word="solar">solar</span>-<span word="dimming">dimming</span> <span word="problem">problem</span> <span word="and">and</span> <span word="pondering">pondering</span> <span word="its">its</span> <span word="implications">implications</span> <span word="for">for</span> <span word="the">the</span> <span word="climate">climate</span> <span word="system">system</span> <span word="as">as</span> <span word="a">a</span> <span word="whole">whole</span>.</p><p> <span word="Many">Many</span> <span word="scenarios">scenarios</span> <span word="for">for</span> <span word="global">global</span> <span word="warming">warming</span>, <span word="for">for</span> <span word="example">example</span>, <span word="invoke">invoke</span> <span word="a">a</span> <span word="speedup">speedup</span> <span word="in">in</span> <span word="the">the</span> <span word="hydrological">hydrological</span> <span word="cycle">cycle</span> <span word="by">by</span> <span word="which">which</span> <span word="water">water</span> <span word="evaporates">evaporates</span> <span word="and">and</span> <span word="then">then</span> <span word="comes">comes</span> <span word="down">down</span> <span word="as">as</span> <span word="rain">rain</span>. <span word="The">The</span> <span word="cooling">cooling</span> <span word="produced">produced</span> <span word="by">by</span> <span word="solar">solar</span> <span word="dimming">dimming</span>, <span word="however">however</span>, <span word="may">may</span> <span word="slow">slow</span> <span word="the">the</span> <span word="rate">rate</span> <span word="of">of</span> <span word="evaporation">evaporation</span>, <span word="while">while</span> <span word="higher">higher</span> <span word="up">up</span> <span word="in">in</span> <span word="the">the</span> <span word="atmosphere">atmosphere</span> <span word="the">the</span> <span word="pollutants">pollutants</span> <span word="responsible">responsible</span> <span word="for">for</span> <span word="absorbing">absorbing</span> <span word="and">and</span> <span word="reflecting">reflecting</span> <span word="sunlight">sunlight</span> <span word="are">are</span> <span word="likely">likely</span> <span word="to">to</span> <span word="interfere">interfere</span> <span word="with">with</span> <span word="the">the</span> <span word="process">process</span> <span word="that">that</span> <span word="produces">produces</span> <span word="rain">rain</span>.</p>
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