After taking nearly 3 million years to reach our first 1 billion, it has taken us only 11 years to raise our population the most recent billion (from 5 to 6).
There is simply no getting around this reality for the following reason: any population or other object which grows exponentially will eventually overtake the size of the universe, a physical impossibility, at least as we conceptualize physics.
As a population’s density changes, a naturally-occurring series of interactions which are environmentally controlled form between members of the population, thus regulating the population size....
The world population has almost doubled since 1965 and is currently growing at a rate of more than 80 million people every year (Ehrlich and Ehrlich 557)....
What is the significance of your findings?
What are the implications of your conclusions for this topic and for the broader field?
Are their any limitations to your approach?
Are there any other factors of relevance that impact upon the topic but fell outside the scope of the essay?
Are their any suggestions you can make in terms of future research?
This natural inequality of the two powers of population, andof production in the earth, and that great law of our naturewhich must constantly keep their effects equal, form the greatdifficulty that to me appears insurmountable in the way to theperfectibility of society. All other arguments are of slight andsubordinate consideration in comparison of this. I see no way bywhich man can escape from the weight of this law which pervadesall animated nature. No fancied equality, no agrarian regulationsin their utmost extent, could remove the pressure of it even fora single century. And it appears, therefore, to be decisiveagainst the possible existence of a society, all the members ofwhich, should live in ease, happiness, and comparative leisure;and feel no anxiety about providing the means of subsistence forthemselves and families.
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The different ratios in which population and food increase—Thenecessary effects of these different ratios of increase—Oscillation produced by them in the condition of the lowerclasses of society—Reasons why this oscillation has not been somuch observed as might be expected—Three propositions on whichthe general argument of the essay depends—The different statesin which mankind have been known to exist proposed to be examinedwith reference to these three propositions.
This implies a strong and constantly operating check onpopulation from the difficulty of subsistence. This difficultymust fall somewhere; and must necessarily be severely felt by alarge portion of mankind.
I think it will be allowed, that no state has hitherto existed (at least that we have any account of) where the manners were so pure and simple, and the means of subsistence so abundant, that no check whatever has existed to early marriages; among the lower classes, from a fear of not providing well for their families; or among the higher classes, from a fear of lowering their condition in life. Consequently in no state that we have yet known has the power of population been left to exert itself with perfect freedom.
Assuming then, my postulata as granted, I say, that the powerof population is indefinitely greater than the power in the earthto produce subsistence for man.
Whether the law of marriage be instituted, or not, the dictateof nature and virtue, seems to be an early attachment to onewoman. Supposing a liberty of changing in the case of anunfortunate choice, this liberty would not affect population tillit arose to a height greatly vicious; and we are now supposingthe existence of a society where vice is scarcely known.
The objective is to point out the differences in Indian and US population compositions, total fertility rates, economic conditions, disease control policies, growth, and literacy rates.