Us News Headlines 2050. The us share of the global economy has dropped from 28 percent in 1950 to about 17 percent today. Last year, at the united nations climate change conference, the us joined 20 other nations in pledging to triple global nuclear capacity by 2050.

Us 2050, an initiative of the peter g. Our central forecast is for a share of perhaps 12 percent in 2050, while our scenarios suggest a range between 6.7 percent.