Skyscraper Boom ~ Building More Dense Cities

Amy Cortese in the NYTimes discusses how our ever-more urbanized humanity needs (and is building) dense developments and tall towers which are Scraping the Sky, And Then Some. Most of these gigaprojects are in emerging markets, including especially the "petro-fueled economies of the Middle East and Russia"... Is dominant mode of western public opposition to such mega-construction projects an indicator that the US and yesterday's rich countries are stagnating? On the other hand, Scott Van Voorhis writes of the Building booms in Boston: 60 projects, worth $4B, going up in the Boston Herald, which strikes me as a positive counterpoint to the worry that the boom is increasingly outside the US.