Observations to the world's population may not be an interesting job for you and not a world trend topic. But at least this information is very useful for us who simply just want to see how many people in the world growth recorded until this moment.
With the online tool that called breathingearth dot net , we can monitor the human grew every second. Animation showing the population in the simulation shows the birth, death and C02 emissions from each country.
The animation and simulation data is based on actual statistics, so these data are likely to have certainty about the outcome. The system programmed by Dawid Blejer, who has published many quality projects on stillwater (his site).
Try and learn more on : http://www.breathingearth.net