sakuraba wrote:How are nations going to deal with this problem?
In different ways, although as per above, it is not a probelm for countries that are net exporters of energy, unless their domestic consumption grows to the point where they become net importers (perhaps Iran?).
I have heard that conservation would have to be adopted as a way to get oil to last longer while other alternative energy sources become usable.
This is taking place now. If demand for oil becomes stronger, causing the price to go up more, then this will take place faster. The US, despite being a heavy consumer of energy, is consuming only half per unit of real GDP as before the first oil shock after the 1973 Arab-Israeli war.
However, the transition would take decades.
It might, but there are decades worth of oil left. And should the situation change, due to unexpected increases in demand, or to disruption of supply, the price of oil will go up more, creating a strong incentive for the development of alternatives. I think a transition could occur with quite impressive speed given a sufficiently powerful price incentive. It would be disruptive, of course, but it could still happen. I would look at some of the economies of East Asia, it is remarkable how much can be accomplished in a few decades.
Some think that would turn people against authority, ending civil authority and starting resource wars.
Well, to some extent, this is happening now...many claim the US adventure in Iraq is a war for oil, although they could have just purchased the oil a lot more cheaply. But resources play a major role in some African conflicts, and protests over the price of fuel helped bring down 30+ year rule of Suharto in Indonesia...
Whatever happens, it will surely be a slow and painful transition.
I think that these two characteristics "slow" and "painful" are partial substitutes. The slower it is, the less painful it will be. But I would point out that big transitions have taken place in the past. The early stages of the industrial revolution were not powered by oil, so we can't claim that prior to oil, our ancestors were all subsistence farmers.
No doubt exhausting the supply of an important natural resource has impact, but if economies respond to price signals (energy is subsidized in many countries, this is really bad because when it becomes scarce, people do not respond by conserving), they will adjust. Will industrial civilization collapse? Anything is possible, civilizations have collapsed before, but I don't think it is a necessary or even likely consequence of the exhaustion of the supply of oil.
Finally, I would mention oil isn't even as scarce as is often claimed; what is scarce is oil that can be extracted from the ground at a profit. If the price of oil rises, technologies to improve the yields of existing oil fields become economically viable, and currently non-viable sources of oil (e.g., tar fields in Alberta) become viable.
There will be adjustment, no doubt. Personally, I wouldn't bet on the collapse of industrial civilization, though...