Global Population Benchmarks 1804=1 billion 1927=2 billion 1960=3 billion 1974=4 billion 1987=5 billion 1999=6 billion 2012=7 billion There is an 80 percent likelihood that the number of people on the planet, currently 7.2 billion, will increase to between 9.6 billion and 12.3 billion by 2100, the researchers said. They also saw an 80 percent probability that Africas population will rise to between 3.5 billion and 5.1 billion by 2100 from about 1 billion today.
Posted on: Sat, 20 Sep 2014 01:32:05 +0000
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