The world’s population is the total number of human beings alive on Earth at a given time. In 2007, the world's population had reached 6.6 billion. In line with population projections, this figure continues to grow at rates that were unprecedented before the 21:h rentury, although the rate of increase has almost halved since its peak, which was reached in 1963.Different regions have different rates of population growth, but in the 20thcentury, the world saw the biggest increase in its population in humanhistory. In 2000, the United Nations estimated that the world’s populationwas then growing at the rate of 1.14% or about 75 million people peryear. According to data from the CIA’s 2005-2006 I16 World Factbooks, the world human population currently increases by 203,800 every day The factbook increased this to 211,090 people every day.
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