Life in a Day is a crowdsourced documentary film comprising an arranged series of video clips selected from 80,000 clips submitted to the YouTube video sharing website, the clips showing respective occurrences from around the world on a single day, July 24, 2010.
When I was born, there was 4 351 916 434 people living in this world. Today we are 7 085 2++ +++ and still growing, check the current population at www.ibiblio.org/lunarbin/worldpop
United Nations Population Division has interesting publications about world population trends
How many more can we fit into this world?