At the moment, there's enormous uncertainty across the different models and the different world centres give different answers. (carbonbrief.org)
In the Pacific Coast states, the wide areas filled with small towns, farms, and forests are supplemented by a few big port cities which have evolved into world centres for the media and technology industries. (lovetoescape.com)
During World War II, with many top French artists sheltering from the German Occupation of France, New York took on the mantle of the new world centre of art. (visual-arts-cork.com)