Population Growth Articles

"Global human population growth amounts to around 75 million annually, or 1.1% per year. The global population has grown from 1 billion in 1800 to 7 billion in 2012. It is expected to keep growing, where estimates have put the total population at 8.4 billion by mid-2030, and 9.6 billion by mid-2050"  

Population Reference Bureau. "2013 World Population Factsheet" (PDF). www.pbr.org. Population Reference Bureau. Retrieved 5 December 2014.

Here are some useful articles on Population Growth

Human Population: Population Growth

World Population Data  (clock)

World Population Trends

World Population: 1950-2050