The following one hour video documentary shows that extreme poverty has decreased, especially in Asia. ![]() War and Poverty are far bigger problems, than our overpopulation. The following video shows that Population Growth is not the key part of our problems. The following video is about the science of overpopulation: how it has occurred and what it means to our future. Or in other words 1/20th of the world’s people using up 1/4 of the energy.ġ3% of the world does not have clean drinking water, and 40% do not have adequate sanitation and sewerage treatment. The main problem is not space, but an inbalance in food and fuel, with 5% of the earth’s population consuming 23% of the world’s energy. There are already 23 megacities around the world where people live very large numbers. Space on the planet is not the problem, as 7 billion people standing shoulder to shoulder would only occupy the area of the city of Los Angeles. We actually reached 7 billion people four years earlier than this in 2011.īy 2050, there may be as many as 10 billion people living on Planet Earth.Ĭan the planet support this population and when will we reach the limit of our resources? There is an excellent real time Population meter which ticks over continuously, at the following link:įamily planning initiatives, an ageing population, and the effects of epidemic diseases such as AIDS, are some of the factors behind this rate decrease.Įven at these very low rates of population growth, the population increase numbers are still staggering.īy 2015, despite a low expected 1% growth rate, experts estimated there would be 7 billion people on the planet. Throughout the 1960s, the world’s population was growing at a rate of about 2% per year.īy 1990, that rate was down to 1.5%, and by the year 2015, it’s estimated that it will drop down to 1%.Ĭurrently each second, 5 people are born, and 2 die, which means that each second of the day we get an extra three people on the planet. There is a set of Population Growth fully worked example Maths Problems at the following link:Ĭlick here for Population Growth Example Maths QuestionsĪlthough Total Population is dramatically increasing, the actual Percentage Rate of world’s population growth is slowing down. This Equation involves the exponents of Rate x Time, and this is why Exponential patterns of increase in Populations occur.įind out more about this equation at the following link:Ĭlick here for Population Growth Mathematical Equations Population Growth follows Mathematics which involves exponents.Įxponential increases start off slow, but then sharply increase to a massive explosion in size, just like the power of a rocket engine igniting at take off.Īn exponents formula, similar to the one used on compound growth for superannuation and interest bearing investments, can be used to estimate the Populations of Humans, Animals, and Bacteria. Image Copyright 2013 by Passy’s World of Mathematics The following four minute Swedish video shows what has happened over the last 200 years. The increase in health and life expectancy was historically unevenly spread throughout the world.īut over the last 200 years, Long Life and Good Health have generally increased throughout most of the world, and this has contributed to our exponentially huge population increase. In 1960 the average age of death was 53 years old, but now it is around 75 years old. The death rate has reduced, and people now live a lot longer and many more children are produced and live longer. Here is an excellent two and a half minute video which shows the history of the world’s population increase: On a graph, the increase looks like this: The following video shows how Bacteria divide and multiply exponentially.īy the year 2000, there were around 10 times more people on Earth than there were just 300 years ago in 1700. In addition to the explosion of humans on our own planet, Animals and Bacteria also increase exponentially. The world’s accelerating population growth is a major concern in terms of how our planet can feed and provide fuel for the current 7.2 billion plus people who currently live in our world. Wolfram Language & System Documentation Center.In this lesson we look at Exponential Growth of Populations.Įxponential growth involves increases starting off as reasonably small, and then dramatically increasing at a faster and faster rate. "Matri圎xp." Wolfram Language & System Documentation Center. Wolfram Research (1991), Matri圎xp, Wolfram Language function, (updated 2014). Cite this as: Wolfram Research (1991), Matri圎xp, Wolfram Language function, (updated 2014).
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