The United Nations (UN) forecast Thursday that Nigeria’s population could rise to 440 million by 2050, 40 million more than the projection for the United States of America (USA). The 2005 census put the country’s population at 140 million.

Nigeria is also projected to start rivalling China as the second most populous country in the world by the end of the century with 914 million citizens.

According to the projections, the world’s population will increase from 7.2 billion today to 8.1 billion in 2025, with most growth in developing countries and more than half in Africa. By 2050, it will reach 9.6 billion.

The U.N. uses the “medium-variant” projection, which assumes a substantial reduction in the fertility levels of intermediate- and high-fertility countries in the coming years. In the “high-variant” — if women on average had an extra half of a child — the world population would reach 10.9 billion in 2050. In the “low-variant” — if women on average had half a child fewer — the population would be 8.3 billion in 2050.

Source - http://www.iamnigeria.net/2013/06/un-predicts-that-nigerias-population.html

as if that will solve nigeria's problem