天然气不能有效缓解全球变暖
<p> 天然气不能有效缓解全球变暖 <span word="Both">Both</span> <span word="shale">shale</span> <span word="gas">gas</span> <span word="and">and</span> <span word="conventional">conventional</span> <span word="natural">natural</span> <span word="gas">gas</span> <span word="have">have</span> <span word="a">a</span> <span word="larger">larger</span> <span word="greenhouse">greenhouse</span> <span word="gas">gas</span> <span word="footprint">footprint</span> <span word="than">than</span> <span word="do">do</span> <span word="coal">coal</span> <span word="or">or</span> <span word="oil">oil</span>, <span word="especially">especially</span> <span word="for">for</span> <span word="the">the</span> <span word="primary">primary</span> <span word="uses">uses</span> <span word="of">of</span> <span word="residential">residential</span> <span word="and">and</span> <span word="commercial">commercial</span> <span word="heating">heating</span>. <span word="Dr">Dr</span>. <span word="Robert">Robert</span> <span word="Howarth">Howarth</span>, <span word="a">a</span> <span word="professor">professor</span> <span word="of">of</span> <span word="ecology">ecology</span> <span word="and">and</span> <span word="environmental">environmental</span> <span word="biology">biology</span>, <span word="came">came</span> <span word="to">to</span> <span word="this">this</span> <span word="conclusion">conclusion</span> <span word="after">after</span> <span word="assessing">assessing</span> <span word="the">the</span> <span word="best">best</span> <span word="available">available</span> <span word="data">data</span> <span word="and">and</span> <span word="analyzing">analyzing</span> <span word="greenhouse">greenhouse</span> <span word="gas">gas</span> <span word="footprints">footprints</span> <span word="for">for</span> <span word="both">both</span> <span word="methane">methane</span> <span word="and">and</span> <span word="carbon">carbon</span> <span word="dioxide">dioxide</span> <span word="over">over</span> <span word="a">a</span> <span word="timescale">timescale</span> <span word="of">of</span> 20-<span word="years">years</span> <span word="following">following</span> <span word="emissions">emissions</span>. <span word="The">The</span> <span word="findings">findings</span> <span word="are">are</span> <span word="published">published</span> <span word="in">in</span> <span word="Energy">Energy</span> <span word="Science">Science</span> <span word="Engineering">Engineering</span>. <span word="While">While</span> <span word="emissions">emissions</span> <span word="of">of</span> <span word="carbon">carbon</span> <span word="dioxide">dioxide</span> <span word="are">are</span> <span word="less">less</span> <span word="from">from</span> <span word="natural">natural</span> <span word="gas">gas</span> <span word="than">than</span> <span word="from">from</span> <span word="coal">coal</span> <span word="and">and</span> <span word="oil">oil</span>, <span word="methane">methane</span> <span word="emissions">emissions</span> <span word="are">are</span> <span word="far">far</span> <span word="greater">greater</span>. <span word="Methane">Methane</span> <span word="is">is</span> <span word="such">such</span> <span word="a">a</span> <span word="potent">potent</span> <span word="greenhouse">greenhouse</span> <span word="gas">gas</span> <span word="that">that</span> <span word="these">these</span> <span word="emissions">emissions</span> <span word="make">make</span> <span word="natural">natural</span> <span word="gas">gas</span> <span word="a">a</span> <span word="dangerous">dangerous</span> <span word="fuel">fuel</span> <span word="from">from</span> <span word="the">the</span> <span word="standpoint">standpoint</span> <span word="of">of</span> <span word="global">global</span> <span word="warming">warming</span> <span word="over">over</span> <span word="the">the</span> <span word="next">next</span> <span word="several">several</span> <span word="decades">decades</span>, <span word="said">said</span> <span word="Dr">Dr</span>. <span word="Howarth">Howarth</span>. <span word="Society">Society</span> <span word="should">should</span> <span word="wean">wean</span> <span word="ourselves">ourselves</span> <span word="from">from</span> <span word="all">all</span> <span word="fossil">fossil</span> <span word="fuels">fuels</span> <span word="and">and</span> <span word="not">not</span> <span word="rely">rely</span> <span word="on">on</span> <span word="the">the</span> <span word="myth">myth</span> <span word="that">that</span> <span word="natural">natural</span> <span word="gas">gas</span> <span word="is">is</span> <span word="an">an</span> <span word="acceptable">acceptable</span> <span word="bridge">bridge</span> <span word="fuel">fuel</span> <span word="to">to</span> <span word="a">a</span> <span word="sustainable">sustainable</span> <span word="future">future</span>.</p><p> </p>
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