To celebrate World Population Day we have selected some of the most interesting and impacting questions, data and discussions about the consequences of sharing a world with more than 7billion people.

Did you know that…

Population growth by continent (1960 – 2010):

 

Photo: Commuters disembark from crowded suburban trains during the morning rush hour at Churchgate railway station on World Population Day in Mumbai (Vivek Prakash / Reuters).