煎蛋小学堂:英语百科(视频+中英字幕) 第20课:世界上规模最大的实验
<p><span word="Hello">Hello</span> <span word="fellow">fellow</span> <span word="scientists">scientists</span>!<span word="Thanks">Thanks</span> <span word="to">to</span> <span word="your">your</span> <span word="active">active</span> <span word="collaboration">collaboration</span>,<span word="our">our</span> <span word="study">study</span> <span word="the">the</span> <span word="worlds">worlds</span> <span word="largest">largest</span> <span word="uncontrolled">uncontrolled</span> <span word="experiment">experiment</span>.<span word="crossed">crossed</span> <span word="a">a</span> <span word="historic">historic</span> <span word="milestone">milestone</span> <span word="on">on</span> <span word="May">May</span> 9,2013,<span word="Ahead">Ahead</span> <span word="of">of</span> <span word="schedule">schedule</span>,<span word="the">the</span> <span word="concentration">concentration</span> <span word="of">of</span> <span word="carbon">carbon</span> <span word="dioxide">dioxide</span> <span word="gas">gas</span> <span word="in">in</span> <span word="the">the</span> <span word="Earths">Earths</span> <span word="atmosphere">atmosphere</span> <span word="has">has</span> <span word="reached">reached</span> 400 <span word="parts">parts</span> <span word="per">per</span> <span word="million">million</span>.<span word="This">This</span> <span word="is">is</span> <span word="a">a</span> <span word="big">big</span> <span word="change">change</span> <span word="from">from</span> <span word="a">a</span> <span word="hundred">hundred</span> <span word="years">years</span> <span word="ago">ago</span>,<span word="when">when</span> <span word="the">the</span> <span word="concentration">concentration</span> <span word="was">was</span> <span word="just">just</span> 300 <span word="ppm">ppm</span>.<span word="below">below</span> <span word="which">which</span> <span word="it">it</span> <span word="had">had</span> <span word="stayed">stayed</span> <span word="for">for</span> <span word="more">more</span> <span word="than">than</span> 800,00 <span word="years">years</span>.科学家们你们好！正由于你们的积极合作 我们的研究，世界上最大的不受控实验，在2013年5月9日跨过了一个新的里程碑，我们提前将地球大气中二氧化碳浓度，提高到了百万分之四百。和一百年前相比 这是个极大的变化，当时二氧化碳浓度仅为300<span word="ppm">ppm</span>，80万年以来这个数字一直保持在300之下。<span word="Weve">Weve</span> <span word="used">used</span> <span word="the">the</span> <span word="most">most</span> <span word="effective">effective</span> <span word="methods">methods</span> <span word="to">to</span> <span word="increase">increase</span> <span word="the">the</span> <span word="levels">levels</span> <span word="of">of</span> <span word="CO">CO</span>2 <span word="in">in</span> <span word="our">our</span> <span word="atmosphere">atmosphere</span>.<span word="burning">burning</span> <span word="coal">coal</span>,<span word="oil">oil</span> <span word="and">and</span> <span word="natural">natural</span> <span word="gas">gas</span>,<span word="chopping">chopping</span> <span word="down">down</span> <span word="forests">forests</span>,<span word="and">and</span> <span word="surprisingly">surprisingly</span> <span word="making">making</span> <span word="cement">cement</span>.<span word="In">In</span> <span word="some">some</span> <span word="respects">respects</span> 400 <span word="ppm">ppm</span> <span word="is">is</span> <span word="just">just</span> <span word="an">an</span> <span word="arbitrary">arbitrary</span> <span word="figure">figure</span>.<span word="an">an</span> <span word="attractively">attractively</span> <span word="round">round</span> <span word="number">number</span> <span word="like">like</span> <span word="the">the</span> <span word="four">four</span>-<span word="minute">minute</span> <span word="mile">mile</span>.<span word="or">or</span> <span word="the">the</span> 7 <span word="billion">billion</span> <span word="mark">mark</span> <span word="for">for</span> <span word="world">world</span> <span word="population">population</span>.<span word="but">but</span> <span word="it">it</span> <span word="indicates">indicates</span> <span word="that">that</span> <span word="we">we</span> <span word="have">have</span> <span word="reached">reached</span> <span word="a">a</span> <span word="new">new</span> <span word="phase">phase</span> <span word="of">of</span> <span word="our">our</span> <span word="experiment">experiment</span>.我们采用了最有效的方法来提高大气中的二氧化碳浓度：燃烧煤炭，油和天然气，砍伐森林，还有更令人惊讶的，制造水泥。在某些方面 400<span word="ppm">ppm</span>只是一个任意设定的数字，一个吸引人的约整数。正如每英里四分钟（速度），或者是地球人口70亿大关。但这意味着我们已经达到了实验的新一个阶段。<span word="Each">Each</span> <span word="day">day</span> <span word="forward">forward</span>,<span word="we">we</span> <span word="go">go</span> <span word="deeper">deeper</span> <span word="into">into</span> <span word="territory">territory</span> <span word="uncharted">uncharted</span> <span word="in">in</span> <span word="human">human</span> <span word="history">history</span>!<span word="After">After</span> 400<span word="ppm">ppm</span> <span word="who">who</span> <span word="knows">knows</span> <span word="what">what</span> <span word="will">will</span> <span word="happen">happen</span>?<span word="Actually">Actually</span>,<span word="our">our</span> <span word="preliminary">preliminary</span> <span word="results">results</span> <span word="give">give</span> <span word="us">us</span> <span word="a">a</span> <span word="pretty">pretty</span> <span word="good">good</span> <span word="idea">idea</span>.日复一日 我们向人类历史的未知地域探得越深！400<span word="ppm">ppm</span>过后 谁知道会发生什么呢？实际上 我们的初步结果已带来了比较明确的思路。<span word="Weve">Weve</span> <span word="seen">seen</span> <span word="more">more</span> <span word="and">and</span> <span word="bigger">bigger</span> <span word="floods">floods</span>,<span word="fires">fires</span>,<span word="droughts">droughts</span>,<span word="and">and</span> <span word="storms">storms</span>,<span word="Melting">Melting</span> <span word="ice">ice</span> <span word="caps">caps</span> <span word="and">and</span> <span word="rising">rising</span> <span word="sea">sea</span> <span word="levels">levels</span>.<span word="You">You</span> <span word="may">may</span> <span word="already">already</span> <span word="have">have</span> <span word="experienced">experienced</span> <span word="some">some</span> <span word="of">of</span> <span word="these">these</span> <span word="yourself">yourself</span>,<span word="and">and</span> <span word="you">you</span> <span word="can">can</span> <span word="expect">expect</span> <span word="more">more</span> <span word="in">in</span> <span word="the">the</span> <span word="future">future</span>,<span word="Please">Please</span> <span word="publicize">publicize</span> <span word="our">our</span> <span word="experiment">experiment</span> <span word="and">and</span> <span word="tell">tell</span> <span word="your">your</span> <span word="friends">friends</span>,<span word="family">family</span> <span word="and">and</span> <span word="politicians">politicians</span> <span word="how">how</span> <span word="important">important</span> <span word="their">their</span> <span word="contributions">contributions</span> <span word="have">have</span> <span word="been">been</span>.我们已经目睹了更凶猛更频繁的洪水 大火和风暴。冰盖在融化 海平面在上升。你可能也已经亲身经历了当中的某些事情，在未来 你可以指望经历更多这样的事，请帮忙宣传我们的实验 并且告诉你的朋友 家人，以及政客们他们对实验的贡献有多重要。<span word="After">After</span> <span word="all">all</span>,<span word="it">it</span> <span word="is">is</span> <span word="people">people</span>-<span word="like">like</span> <span word="you">you</span> <span word="and">and</span> <span word="me">me</span> <span word="and">and</span> <span word="major">major</span> <span word="corporations">corporations</span>-<span word="with">with</span> <span word="access">access</span> <span word="to">to</span> <span word="cars">cars</span>,<span word="air">air</span> <span word="conditioning">conditioning</span> <span word="supermarkets">supermarkets</span>,<span word="and">and</span> <span word="so">so</span> <span word="on">on</span> <span word="who">who</span> <span word="are">are</span> <span word="responsible">responsible</span> <span word="for">for</span> <span word="the">the</span> <span word="large">large</span> <span word="majority">majority</span> <span word="of">of</span> <span word="todays">todays</span> <span word="greenhouse">greenhouse</span> <span word="gas">gas</span> <span word="emissions">emissions</span>.毕竟，是人类。如你我，还有那些大公司。通过开车，开空调，去超市购物等等，是这些人对今日排放的大部分温室气体负有责任。<span word="This">This</span> <span word="global">global</span> <span word="experiment">experiment</span> <span word="cant">cant</span> <span word="continue">continue</span> <span word="without">without</span> <span word="your">your</span> <span word="participation">participation</span>.<span word="So">So</span> <span word="remember">remember</span>,<span word="the">the</span> <span word="next">next</span> <span word="time">time</span> <span word="you">you</span> <span word="let">let</span> <span word="your">your</span> <span word="car">car</span> <span word="idle">idle</span>,<span word="leave">leave</span> <span word="the">the</span> <span word="Ac">Ac</span> <span word="on">on</span> <span word="when">when</span> <span word="youre">youre</span> <span word="not">not</span> <span word="home">home</span>.<span word="or">or</span> <span word="forget">forget</span> <span word="to">to</span> <span word="eat">eat</span> <span word="the">the</span> <span word="food">food</span> <span word="you">you</span> <span word="bought">bought</span>...<span word="yorre">yorre</span> <span word="part">part</span> <span word="of">of</span> <span word="something">something</span> <span word="big">big</span>.这项全球性的实验不能没有你的参与，所以请牢记，下次你让自己车闲置无用时，或是在不在家时开着空调，要么忘记吃自己带的食物，你就是那大计划的一部分。</p>
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