by simplelife » Sun 03 May 2009, 18:52:43
$this->bbcode_second_pass_quote('shortonoil', '[')b]AirlinePilot said:
$this->bbcode_second_pass_quote('', 'I') believe I have read that when you go back to the very beginning of oil drilling and exploration, the ratio was near 100:1. If its around 7 or 8:1 now that gives you some form of basic measure. I think too that as Short is pointing out it appears that this trend may not follow any smooth or gradual path. My guess is that the time will come soon where that ratio gets uglier far quicker than it ever did in the past due to many things but most of all our inability to grasp the exponential function. That plus our inability to wean ourselves off of this highly addictive black goo we call oil.
That’s right
AP, and as we get nearer the end the worse it will become. Very close to the end it will get down right nasty (if we haven’t collapsed into an economic vortex by then).
To explain: according to the model the annual point change in ERoEI is about 0.5 (.47 exactly..but). If the ERoEI for finished product in ‘09 is now 8:1, in 2010 it will be 7.5:1. That represent a 6.3% decline in energy contribution to the general economy. Within 5 years the ERoEI will have dropped to 5.5:1, or a 9.1% annual drop in energy contribution to the general economy. The decline is geometric.
According to studies done by Cutler Cleveland, Ph.D. there is a linear relationship between energy use and economic activity. It is reasonable to assume that will hold for short durations like a decade. By the 10th year the economy will be dropping by 17% per year. You can see where the 16.6 years come form. 16.6 years will be the point when we have reached the end of the oil age, and world economic activity will have dropped 38%.
In the
AvailableEnergy thread you will find a post that explains why it can be expected that for the next two years the decline in economic activity will slow. World GDP in 2009 will be -4.3% and 2010 -4.7%. This will occur because the world’s oil industry is reducing its E&D development. The energy that would have been used in those efforts will come back as a short term bonus to the general economy. I’m assuming that it will take no longer than two years for the bulk of it to used. After that, back down we go.
Wouldnt "38%" be a direct impact, and not considering indirect effects. Cheap oil frees up other captial (human) to persue other things (service industries, research etc etc) and when oil is gone much of that capital will be plowing fields/gone. So in reality the economy may acually fall like 80%