... ... At the dawn of agriculture, about 8000 B.C., the population of the world was approximately 5 million. Over the 8,000-year period up to 1 A.D. it grew to 200 million (some estimate 300 million or even 600, suggesting how imprecise population estimates of early historical periods can be), with a growth rate of under 0.05% per year.
A tremendous change occurred with the industrial revolution: whereas it had taken all of human history until around 1800 for world population to reach one billion, the second billion was achieved in only 130 years (1930), the third billion in less than 30 years (1959), the fourth billion in 15 years (1974), and the fifth billion in only 13 years (1987).
- During the 20th century alone, the population in the world has grown from 1.65 billion to 6 billion.
- In 1970, there were roughly half as many people in the world as there are now.
- Because of declining growth rates, it will now take over 200 years to double again.
Wonder how big ... ... ...
... ... Ne kohen e lindjes se agrikultures, rreth vitit 8000 PES, popullata boterore ka qene perafersisht 5 milion. Gjate nje periudhe 8000 vjecare deri ne vitin 1 ES, u rrit deri diku 200 milion (disa perafrime e cojne 300 milion dhe madje edhe 600 milion. Kjo duhet te na beje te vetedishem se perafrimet e popullatave ne epokat e hershme jane pa precizion), me nje rritje vjetore maksimale prej 0.05% ne vit.
Nje ndryshim rrenjesor ka ndodhur me revolucionin industrial: nderkohe qe u desh e gjithe historia e njerezimit deri ne vitin 1800 per te arritur tek shifra 1 miliard, miliardi i dyte u arrit ne 130 vitet qe pasuan (vitet 1930), miliardi i trete ne me pak sesa 30 vjet (vitet 1950), miliardi i katert ne 15 vjet (1974), dhe miliardi i peste ne 13 vjet (1987).
- Vetem gjate shekullit te 20, popullata boterore u be nga 1.65 miliard ne 6 miliard.
- Ne 1970, ka patur afersisht aq njerez sa gjysma e sasise se sotme.
- Per shkak te nje ulje te ritmeve te rritjes, dyfishimi i rradhes ne popullate do te jete per rreth 200 vjet.
Nese vrasim mendjen se sa e madhe ... ... ...