The human population of Earth reached 1 billion in 1804, 2 billion in 1927, 3 billion in 1959, 4 billion in 1974 and 5 billion in late 1986. Last year on October 12th 1999, the human population of Earth reached 6 billion. In my lifetime the population has doubled from 3 billion in 1959 to the 6,034,213,000 today. This doubling of population which occurred over the last 40 years will never come close to happening again.
             The exponential growth of human population peaked in 1987. That year 87.01 million more people were added to the Earth. Since 1987, the population has declined on average by 2.1 million less people added per year. In this year of 2000 the population will increase by 60.1 million people. If we maintain this 13 year average of 2.1 million less people added per year, we will peak in population reaching zero population growth in 2029 with 6.90 billion people.
             The decline of human population has been even more dramatic over the last 6 years. In 1994 we added 78.5 million more people, this year we will add 60.1 million. This is a decline of 3 million less people added per year. If we maintain this 6 year average of 3 million less people added per year, we will peak in population reaching zero population growth in 2020 with 6.64 billion people.
             Overpopulation is one of the largest problems on the earth. There have been many attempts to try to stop overpopulation; some have worked, while others haven't.
             In the 1980s and 1990s Floridians had to contend with environmental damage. Florida has 58 hazardous waste sites on the national priority list of the federal Environmental Protection Agency (EPA). Water quality has suffered greatly from unrestricted population growth. Overdevelopment and urban sprawl have consumed or polluted water resources throughout the state, and currently they threaten the purity of the aquifer that supplies drinking water for 5 million people in south Florida.
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