by kpeavey » Fri 22 May 2009, 12:26:00
from the above link:
$this->bbcode_second_pass_quote('', 'C')onclusion
Peak oil represents a grave threat to our food supply, in my opinion. Few are aware of how important the petroleum industry is to the agricultural revolution in which we live. This is why I am currently trying to buy a farm. Consider this, prior to the agricultural revolution, estimates of hunter-gatherer population sizes, based upon anthropological data show that humans were quite few in number.:
"Measures of world population size on the eve of the transition to agriculture, some 12 000 to 10 000 years ago, come from estimates of the maximum population density that this way of life could sustain. These generally range from 5 to 10 million people, and the highest figure--calculated on the assumption that the world was 'saturated' with hunter-gatherers --is only 15 million." (Landers, 1992, p. 402)
Agriculture based only upon animal energy allowed the human population to grow to about 750 million by 1750 (Cavali-Sforza, 1994, p. 68). Peak oil will do several bad things to the world's energy supply. It will force us to use coal, and if one uses coal to replace oil, because coal will be used at a faster rate, the US turns its 200 year supply of coal into a 44 year supply (assuming that there really is a 200 year supply to start with). This implies that by the end of this century, we will no longer have fossil fuels with which we can foster global warming. Nor will we have fossil fuels with which to run our tractors and we will return at the very least to the 1750s. Going back to an animal-energy based economy means that approximately 5/6ths of us must die. The post fossil fuel world, lacking some new energy source, will consist of not many more than 750 million souls. What an ugly century this will be. While there are some long-shot grasps-at-straws possible replacements for fossil fuels, the political turmoil resulting from mass starvation may preclude their development and implementation.
This paper assumes the carrying capacity of the planet is the same as it was in the 1700s. It is not. Human activity and development, along with pollution qnd species extinction have degraded tha carrying capacity of the planet. I could get into the homogeneity of crop species and their dependence on fossil fuels and mechanized agriculture, but we've gone down that road in other threads.
The paper is laid out well and draws a conclusion along the same lines as many others, but paints an optimistic picture. 5/6 of a civilization does not die off peacefully.
If you want a picture of the future, imagine a boot stamping on a human face--for ever."
-George Orwell, 1984
_____
twenty centuries of stony sleep were vexed to nightmare by a rocking cradle, and what rough beast, its hour come round at last, slouches towards Bethlehem to be born?
-George Yeats