7 December 2005. ↑ http://www.biologicaldiversity.org/programs/population_and_sustainability/extinction/ ↑ Can we be sure the world's population will stop rising?, BBC News, 13 October 2012 ↑ The best stats you've ever seen, Hans Rosling, TED Talks, Filmed Feb 2006 ↑ Balzani, Vincenzo; Armaroli, Nicola (2010).