Numărul de episoade: 6
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Episodul 1.Do walls work?
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Episodul 2.How do we live together peacefully?
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Episodul 3.How do we make mega-cities more livable?
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Episodul 4.Doha, Qatar
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Episodul 5.How is technology improving our lives?
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Episodul 6.How do we better feed our growing planet?