Dubai has a Wind-Powered Rotating Skyscraper. Tokyo is building a Sky Tree. The two are tall. The similarities stop there though Tokyo definitely sounds like it is doing something earth friendly. The Tokyo Sky Tree is expected to be a major tourist draw at 610 meters when it is completed in 2012. Tokyo hopes 5.4 million people will take a look in the first year and 2.7 million/year for the subsequent 30 years.
The Tokyo Sky Tree is designed for terrestrial digital broadcasting and to take the place of the current analog broadcasting format by 2011. It will also aid in anti-disaster measurements. There will be observation decks at 350 and 450 meters. The surrounding area – commercial facilities, offices and colleges. The cost Y65B ($600 million).
Read about the debate surrounding the construction here. (subscription may be required.) Suffice it to say that in the debate, nobody is talking about how friendly or not the new tower will be to the Tokyo environment.