Just five days before the opening of the world's tallest skyscraper in Dubai, organizers were informed of the shock decision to rename the building after the ruler of Abu Dhabi.

A decision on whether to proceed with a landmark hydrogen power and carbon capture project in Abu Dhabi was postponed by 18 months in a February announcement.

Just five days before the opening of the world's tallest in Dubai, organizers were informed of the shock decision to rename the building after the ruler of Abu Dhabi.