Just how finite is the Earth and what are we going to do about it ?
Stormy 2012/04/01 05:58:24
Do you remember the first time you saw the image of our blue and white planet from space ? I do actually. I remember thinking how exquisite it was and how magical it was to see the sum total of all that we are just floating in the dark hostile void of space. I also remember thinking ...of all the people who had lived and died on the earth, the countless generations, mine was the first to see such a sight !
The earths diameter is 7926.41 miles.
surface area = 197.38 million sq miles.
However only 57 million sq miles is land ( 36. 48 billion acres ). There are 640 sq acres per mile. However only 12 million sq miles or 7.68 billion acres is arable land.
The world population is growing at a staggering 211,000 per day.
1 A.D. 250 million
1492 500 million
1804 1 billion
1922 2 billion
1959 3 billion
2006 6 .68 billion
2039 8 - 13 billion est.
The US has 470 million acres of arable land in cultivation. One million acres is lost every year to urbanization, transportation networks, and industrial expansion. Two million acres is lost each year to erosion, salinization and water logging. There are currently 2.2 acres per person of arable land in the US. In 2006 there was 1.15 acres of arable land per person world wide. ( 7.6 billion acres arable land / 6.68 billion people. We are at peak everything it seems. Peak oil, peak debt, peak population. What to do ?
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