A green city blooms in the desert
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Several lush gardens will be irrigated with the headquarters building's wastewater. The plants and trees help keep the environment cool and absorb carbon dioxide.
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Last updated December 03 2008: 10:34 AM ET
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Eco-friendly city of the future
The Emirate of Abu Dhabi begins construction on its green city, Masdar. See the plans for this $15 billion undertaking.