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Originally Posted by bigguy1231
As you can see from my comments I don't subscribe to alarmist theories or doomsday scenarios. The world will live on and thrive for millions of years to come despite all the doom and gloom from the environmental fringe.
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The world will do just fine, but I'm interested in what western civilization will look like once the access of our western civilization to cheap, abundant oil goes into decline.
I've studied the alternatives in some detail, and it doesn't look to me like any combination of viable alternatives can replace oil's sheer versatility, energy density, and ease of transport.
I don't "subscribe to alarmist theories or doomsday scenarios" either, but I like to see a path from here to there: in this case, from today's economy to your optimistic future where we get to go on living in the manner to which we have clearly grown accustomed.
Your optimism notwithstanding, I don't think you can trace a plausible
status quo trajectory into the future, given the facts on the ground.
Note: "new technologies" and "market forces" do not qualify as answers - particularly the latter, since market forces can just as easily match supply and demand by destroying demand as by creating supply (as the past few years have demonstrated).
- Renewable energy sources - wind, solar, geothermal - certainly can't replace oil at current consumption rates.
- Biofuels have a very low EROEI (energy returned on energy invested) and in every case in operation today, depend on massive hydrocarbon inputs to grow them in the first place.
- Nuclear power has a number of serious problems both technical and political - not to mention the fact that nuclear power plants still require cheap, abundant oil to construct and operate.
- Cold fusion is a will-o-the-wisp, with no prospects for commercial application for at least several decades.
- Hydrogen is not a power source but a medium of storage - and a net energy sink at that.
On top of all that, climate change is a real, demonstrable, empirically observed phenomenon - and it's going to create some serious challenges that we need somehow to address sooner or later.
All this means we're almost certainly going to have to get used to the idea that our economy and living arrangements will have to operate on a significantly lower baseline energy supply than they do today.
We don't have several decades put this off: the global oil production rate is already at or very near an all-time peak (probably the former) of around 85 million barrels per day, and the decline, once it begins, will be irreversible.
Neither God nor the technology fairies are going to put more oil in the ground or reverse the second law of thermodynamics. When an oilfield declines to the point that it costs more than a barrel of oil to extract a barrel of oil, it's effectively depleted, regardless of how much oil is still left in the ground.
N.B. that the technologies developed in the past few decades - slant drilling, water injection, etc. - have succeeded mainly in increasing the
rate of extraction, not the total recoverable yield. The latter is susceptible to the oil price (i.e. the higher the price, the higher recoverable yield
at a profit), but even that is still bounded on top by EROEI.
All of this is to state not that the sky is falling, but that we have identified some serious long-term constraints on our ability to continue doing things the way we do them today. As a civilization, we can choose to respond to this feedback and adjust our living arrangements to make them more sustainable, or we can choose to do nothing and hope for the best.
Successful civilizations, like successful organisms, choose the former: apprehending feedback from their surroundings, responding appropriately and creatively to changing circumstances, and learning to thrive in the new environment.
At the same time, human history, like the biological record, is littered with the remains of civilizations and organisms that opted for the latter.
A positive future isn't something that just drops into our laps from the heavens. It's an outcome that we create through awareness of the challenges we face and a willingness to face them.