Recent developments in the worldwide movement to bring runaway birth rates under control are such that it now is possible to assert with considerable confidence that the prospects for success are excellent. In fact, it is quite reasonable to assume that the world population crisis is a phenomenon of the 20th century, and will be largely if not entirely a matter of history when humanity moves into the 21st century. No doubt there will still be problematic areas in the year 2000, but they will be confined to a few nations that were too prejudiced, too bureaucratic, or too disorganized to take action sooner, or will be confined to small regions within some nations where particular ethnic, economic, or religious groups will not yet have received adequate fertility control services and information. With the exception of such isolated remnants (which may be neutralized by other areas of growth-at-less-than-replacement), it is probable that by the year 2000 each of the major world regions will have a population growth rate that either is zero or is easily within the capacity of its expanding economy to support.