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[|Global warming]

Dubai – Stretching its six intertwining building components into a tower 2.4 kilometres high, Dubai City Tower is expected to be the latest architectural vision to capture the attention of citizens. The professional project pitch details 400 habitable stories, topped by a 400m energy-producing spire, making it 2.4km high. By comparison, Emaar's Burj Dubai is largely predicted to be around 800m high and 160 floors. A "mile-high tower" in Jeddah has been planned by Kingdom Holdings, while Nakheel is building Al Burj, which, according to project sources, will have a final height of 1.28km, although the developer is keeping the details under wraps.

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