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O principal desafio do século XXI
colab
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ecovilas
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metareciclagem
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terraslivres
July 11, 2005 at 10:36:45 PM UTC ·
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http://cienciaecultura.bvs.br/scielo.php?script=sci_arttext&pid=S0009-67252005000200002&lng=en&nrm=iso
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