Six degrees of separation between us and everyone else on this planet. The President of the United States, a gondolier in Venice, just fill in the names. I find it A) extremely comforting that we're so close, and B) like Chinese water torture that we're so close because you have to find the right six people to make the right connection...
7.5 Billion (2017) The current world population is 7.5 billion as of March 2017 according to the most recent United Nations estimates elaborated by Worldometers. The term World Population refers to the human population (the total number of humans currently living) of the world.
The current estimated human population for the planet earth in 2010 is 6,865,300,000 by the United States Census Bureau. The United Nations estimates that world population will be over the 7,000,000,000 mark in 2011. Recent U.N. organized surveys performed in multiple countries have found the average percentage of people who suffer from some sort of cancer is 31%.