Sunday, November 29, 2015

Historical estimates of world population

International Programs

Skip top of page navigation
Census.gov › People and Households › International Programs Main › Data › World Population › Historical Population

World Population

Historical Estimates of World Population

(Population in millions. When lower and upper estimates are the same they are shown under "Lower.")
Year Summary Biraben Durand Haub McEvedy
and Jones		 Thomlinson UN, 1973 UN, 1999 USCB
Lower Upper Lower Upper Lower Upper Lower Upper
10000 BC 1 10 4 1 10
8000 BC 5 5
6500 BC 5 10 5 10
5000 BC 5 20 5 5 20
4000 BC 7 7
3000 BC 14 14
2000 BC 27 27
1000 BC 50 50
500 BC 100 100
400 BC 162 162
200 BC 150 231 231 150
1 AD 170 400 255 270 330 300 170 200 200 400 300
200 AD 190 256 256 190
400 AD 190 206 206 190
500 AD 190 206 206 190
600 AD 200 206 206 200
700 AD 207 210 207 210
800 AD 220 224 224 220
900 AD 226 240 226 240
1000 AD 254 345 254 275 345 265 310
1100 AD 301 320 301 320
1200 AD 360 450 400 450 360
1250 AD 400 416 416 400
1300 AD 360 432 432 360 400
1340 AD 443 443
1400 AD 350 374 374 350
1500 AD 425 540 460 440 540 425 500
1600 AD 545 579 579 545
1650 AD 470 545 500 545 500 470 545
1700 AD 600 679 679 610 600
1750 AD 629 961 770 735 805 795 720 700 629 961 790
1800 AD 813 1,125 954 900 900 813 1,125 980
1850 AD 1,128 1,402 1,241 1,265 1,200 1,200 1,128 1,402 1,260
1900 AD 1,550 1,762 1,633 1,650 1,710 1,656 1,625 1,600 1,550 1,762 1,650
1910 AD 1,750 1,750
1920 AD 1,860 1,860
1930 AD 2,070 2,070
1940 AD 2,300 2,300
1950 AD 2,400 2,558 2,527 2,516 2,500 2,400 2,486 2,520 2,558
Sources:

end quote from:
http://www.census.gov/population/international/data/worldpop/table_history.php

I was interested when the world population of humans first began to be 1 billion humans.

As I read the above estimates by different groups it appears that sometime between 1800 and 1850 the world surpassed 1 billion people. This is the amount (anything under this) could be sustainable for life on earth to continue without eventually extincting the human race.

But, once we surpassed 1 billion people extinction of the human race began. Our extinction began with all the extinctions of creatures around us one by one. Since we are on the top of the food chain, however, it doesn't mean we would be the last to go extinct. For example, a cockroach can withstand nuclear radiation it has been found more than human tissue or brains or muscles. So, it is possible if human extinction comes from a nuclear blast that cockroaches may remain alive here on earth (if earth still exists after that).

So, it is assumed that we are now at at least 7 1/2 times what is survivable for not only humans but all life on earth. So, as we watch literally thousands of species go extinct now every year it is only a matter of time really before humans go extinct too (given all present variables)

In the past, western medicine didn't exist, so people would have been thinned out more by starvation, pandemics and wars and extreme weather events. However, humans have been so successful at staying alive (relatively speaking) that human extinction from overpopulation is the likely scenario we all are moving towards now.

From my point of view after studying many different things in life, groups like ISIS will tend to thin out the human race from now on.

Is this a good thing? No but also Yes.

If we want the human race to survive then the thinning out of the human race might contribute to human survival in the future. In the short run however, groups like ISIS decrease the quality of life for everyone here on earth and so are a bad thing.

However, is it more important that people be nice to each other or is it more important that the human race doesn't go extinct?

This is a question that every member of the human race must answer for themselves every single day.

Because what we do individually and as groups will decide whether the human race survives at all or not 500 to 1000 years into the future.
Posted by at
Labels:

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)