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class="news_art_txt"> <div class="txt_til clearfix"> <h3>全球变暖将增加飞机起飞难度</h3> <span class="time fl">更新时间：2017-07-19</span><div class="label fl">标签：<a href='/plus/search.php?q=美国移民，移民'>美国移民，移民</a></div><span class="liul fr">浏览：<script src="http://sz.zlglobal.net/plus/count.php?view=yes&aid=7030&mid=2" type='text/javascript' language='javascript'></script></span> </div> <p> 大家都知道现在全球气候变暖已经是非常普遍的了，为此法国也和各国签订了协议，美国最近又发布消息说全球变暖有可能会增加飞机的起飞难度，一起来看一下报道!</p> <p> 据日媒报道，美国哥伦比亚大学与美国国家航空航天局(NASA)的团队日前发布研究成果称，如果全球变暖导致气温继续上升，到本世纪后半期可能对飞机的运输能力造成影响。</p> <p> 据悉，其原因是气温上升会使空气膨胀、密度减小，导致飞机难以获得起飞所必需的升力。</p> <p> 据联合国政府间气候变化专门委员会(IPCC)估算，作为全球变暖气温上升最严重的情况，到2100年将导致气温较目前上升4度以上。</p> <p> 据该团队称，在这一情况下，本世纪后半期一天中气温最高时段起飞的飞机中将有一至三成不得不削减0.5%至4%的载重量。据悉一架载客约160人的小型波音737客机，削减0.5%载重相当于3名乘客的份量。</p> <p> 美国媒体称，亚利桑那州菲尼克斯机场已出现类似情况，6月因担心酷暑造成升力不足，2天总计取消50多架航班起降，全球变暖的影响已开始显现。</p> <p> 据悉，该团队围绕全球变暖对飞行的影响对全球19座主要机场及5种常见客机进行了调查。结果发现，具备跑道较短、海拔较高、气温易升高等条件的机场更易受到影响。</p> <p> 从机型来看，越大的客机越易受影响。据悉大型波音777利用被沙漠环绕的菲尼克斯机场时，甚至会出现需削减逾18%载重的情况。</p> <p> 全球变暖会阻碍飞机的起飞难度，那样我们各国应该更加努力的为全球变暖做出更多的应对措施，减少对我们生活的影响。</p> </div> <div class="news_art_gn"> <div class="art_1 clearfix"> <span>原文链接：http://sz.zlglobal.net/news/usa/2017077030.html</span><a href="javascript:void(0);" class="dzq" onclick="javascript:postDigg('good',7030)" id="newdigg"><span class="digg_num">(0)</span></a> <script language="javascript" type="text/javascript">getDigg(7030);</script> <div class="clear"></div> <p>版权声明：本文由兆龙移民独家精选，未经授权，禁止一切同行与媒体转载。欢迎个人转发分享至朋友圈。</p> </div> <a href="http://sz.zlglobal.net/usa/news/20190611227.html"><img src="/images/v2/guanggao.jpg"/></a> </div> <!--相关文章--> <div class="news_art_xg"> <div class="rmgjc_til"><em></em><span>相关移民文章</span></div> <ul> <li class="clearfix"> <a href="http://sz.zlglobal.net/news/usa/20190611278.html" target="_blank" title="移民美国定居适合儿童居住的10个城镇分别是哪些？"> <div class="xgwz_img fl"><img src="http://sz.zlglobal.net/uploads/allimg/190626/1-1Z626101011604-lp.jpg" width="220" height="119"/></div> <div class="xgwz_cont fl"> 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