I take your point that new discoveries, and new technologies, are being made continually, and we are not facing doom tomorrow. My guess is though that our children are going to have to face a tough reckoning in their time, one that they won't thank us for if we do not use more foresight.
We are already there. You see, those who were parents in the late-60's thought the same thing, that their children might have it rough.
One of my favorites from way back.
“By…[1975] some experts feel that food shortages will have escalated the present level of world hunger and starvation into famines of unbelievable proportions. Other experts, more optimistic, think the ultimate food-population collision will not occur until the decade of the 1980s.”
• Paul Ehrlich, Stanford University biologist
auteur said:
There are a couple of issues with the figures stated. One is that much of the world's oil reserves still reside in OPEC countries, and a number of qualified observers have suggested that their figures are inflated, perhaps grossly so, as allowed oil sales within that organization are based on reserves- more reserves reported means, essentially, more money.
One of those USGS estimates, covering 1/3 of the volumes I referenced, is in Venezuela. The error bar on that estimate is big enough to nearly park the entire middle east in. Certainly above ground issues matter, which is why the transition already started in terms of power production is good thing!
auteur said:
This is a strong incentive to fiddle with the figures, especially since these states do not allow outside auditing. Saudi Arabia, for example, insistes that reserves have not declined at all, not one barrel, in 20 years despite massive extraction and sales.
Fortunately, the scientists of the USGS don't use political reserve numbers, they are calculating remaining resources from a geologic perspective, not the sort of claimed political perspective you are referring to.
auteur said:
But, let's take a fairly opimistic figure of 2 trillion barrel equivents of oil and gas in the world.
Sorry, but you can't. The USGS alone has quantified 1.5 trillion BARRELS (not BOE, which is a ridiculous measure in an economic world) of resource, current reserve estimates are approximately the same size, for a total of 3 trillion BARRELS, and if you want to add natural gas to that (you wouldn't need BOE otherwise), the best estimate I can whip out without checking runs about 10,000 TCF, each TCF equalling approximately 100 billion barrels of equivalent, so the known reserves plus USGS estimates (3 trillion barrels) plus the oil equivalent of natural gas ( 1 trillion more barrels) for a total of 4 trillion BOE. And I am excluding the tar sands (another 1 trillion perhaps) the oil shale of Colorado (another 1 trillion) and the GTL process on hydrates ( another 0 to 1 trillion barrels) and the USGS estimates of undiscovered natural gas (which are themselves substantial).
2 trillion is not optimistic, it is unbelievable from a resource available perspective.
For reference to similar sized numbers I recommend the IEA cost curve from 2008, and the JPT article quantifying the total available by Saleri.
http://www.spe.org/jpt/print/archives/2006/04/JPT2006_04_tech_tomorrow.pdf
auteur said:
Given current world demand of about 35 billion barrels a day, and adding on a modest 3% per year increase to account for developing nations, we have a ballpark figure of 34 years left. Let's say that, more optimistically, growth in consumption is robust, but also new finds are significant- 3% growth in reserves per year, and a 4% growth in consumption. We now have 46 years left.
Long before this time of course, prices will begin to spike, and we will start to move to a different paradigm, one that includes much more conservation, and changes in lifestyle. Gradual would be better than sudden in this case.
We are already moving towards a new paradigm, and have started a transition for those who worry about these things. My entire career has been involved in working in the oil field, studying the physical world of the oil field, or reporting it accurately to others. I have solar panels on the garage roof, drive a Chevy Volt so I don't have to contribute to fossil fuel use when commuting around town, and believe oil is obsolete, even if the rest of the world hasn't figured it out yet.