<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0870-8312</journal-id>
<journal-title><![CDATA[Ciência & Tecnologia dos Materiais]]></journal-title>
<abbrev-journal-title><![CDATA[C.Tecn. Mat.]]></abbrev-journal-title>
<issn>0870-8312</issn>
<publisher>
<publisher-name><![CDATA[Sociedade Portuguesa de Materiais]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0870-83122009000100009</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Society and Energy by 2025]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sequeira]]></surname>
<given-names><![CDATA[César A.C.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidade Técnica de Lisboa Instituto Superior Técnico ICEMS - Institue for Science and Engineering of Materials and Surfaces]]></institution>
<addr-line><![CDATA[Lisboa ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2009</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2009</year>
</pub-date>
<volume>21</volume>
<numero>1-2</numero>
<fpage>84</fpage>
<lpage>95</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S0870-83122009000100009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S0870-83122009000100009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S0870-83122009000100009&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[This article presents a vision of how the energy sector might progress over the next 15 years or so, together with an examination of the broader socio-political problems that need to be addressed if renewable energy is to fulfil its potential on this time-scale.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Este artigo apresenta uma antevisão de como o sector energético poderá evoluir nos próximos 15 anos, bem como uma apreciação dos problemas sócio-políticos globais a solucionar se o potencial das energias renováveis se desenvolver neste período.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Greenhouse gases]]></kwd>
<kwd lng="en"><![CDATA[Fossil fuels]]></kwd>
<kwd lng="en"><![CDATA[Electricity generation]]></kwd>
<kwd lng="en"><![CDATA[Energy conservation and storage]]></kwd>
<kwd lng="en"><![CDATA[Renewable energy]]></kwd>
<kwd lng="pt"><![CDATA[Gases de estufa]]></kwd>
<kwd lng="pt"><![CDATA[Combustíveis fósseis]]></kwd>
<kwd lng="pt"><![CDATA[Produção de electricidade]]></kwd>
<kwd lng="pt"><![CDATA[Conservação e armazenamento de energia]]></kwd>
<kwd lng="pt"><![CDATA[Energias renováveis]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="center"><b>Society and Energy by 2025</b></p>     <p align="center"></p>     <p align="center">C&eacute;sar A.C. Sequeira </p>     <p align="center">&nbsp;</p>     <p align="center">ICEMS-DEQB, Instituto Superior Técnico, Universidade Técnica    de  Lisboa, </p>     <p align="center">Av. Rovisco Pais, 1049-001 Lisboa, Portugal. </p>     <p align="center"> (<a href="mailto:cesarsequeira@ist.utl.pt">cesarsequeira@ist.utl.pt</a>;    tel. 351-21-8417765)</p>      <p>&nbsp;</p>          <p>&nbsp;</p>        <p><b>ABSTRACT: </b>This article presents a vision of how the energy sector might    progress over the next 15 years or so, together with an examination of the broader    socio-political problems that need to be addressed if renewable energy is to    fulfil its potential on this time-scale. </p>     ]]></body>
<body><![CDATA[<p><b>Keywords:</b> Greenhouse gases; Fossil fuels; Electricity generation; Energy    conservation and storage; Renewable energy.</p>     <p>&nbsp;</p>     <p>&nbsp;</p>     <p><b>RESUMO:</b></p>     <p>Este artigo apresenta uma antevisão de como o sector energético poderá evoluir    nos próximos 15 anos, bem como uma apreciação dos problemas sócio-políticos    globais a solucionar se o potencial das energias renováveis se desenvolver neste    período.</p>     <p><b>Palavras chave: </b>Gases de estufa; Combustíveis fósseis; Produção de electricidade;    Conservação e armazenamento de energia; Energias renováveis.</p>        <p>&nbsp;</p>     <p>&nbsp;</p>     <p>Full text only available in PDF format.</p>        <p>Texto completo dispon&iacute;vel apenas em PDF.</p>     ]]></body>
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