Human population growth

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Before and during the 19th Century the world's population was growing steadily but it remained in a stable state. The 20th Century brought advancements in agriculture and technology, which caused dramatic increases in human population growth. These increases have continued through to the 21st Century and it has now been estimated that in the year 3040 there could be ten sextillion people which would leave each person with less than one square inch of their own. This, however, is quite unlikely because the greatest population that the earth could support comfortably is somewhere between nine and twelve billion. We already have a world population of six billion and are growing at approximately 260,000 people per day. The last site in my reference list illustrates this increase in population by keeping a live up-to-date world and U.S. popu

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