Half a billion Americans? [1]...

Half a billion Americans? "America's census in 2000 contained a shock. The population turned out to be rising faster than anyone had expected when the 1990 census was taken. There are disputes about exactly why this was (more on that shortly). What is not in doubt is that a gap is beginning to open with Europe. America's fertility rate is rising. Europe's is falling. America's immigration outstrips Europe's and its immigrant population is reproducing faster than native-born Americans. America's population will soon be getting younger. Europe's is ageing."