World Oil Production at 3/31/2014-Where are We Headed? Gail Tverberg points out the instability of global oil production leading to ultimate declines in oil availability and increases in prices.
"The fact that the selling price of oil remains flat tends to lead to political instability in oil exporters because they cannot collect the taxes required to provide programs needed to pacify their people (food and fuel subsidies, water provided by desalination, jobs programs, etc.) without very high oil prices."
The general trend is a global decline in oil production amidst unstable to declining production worldwide. The disparity between the cost of production and the price that consumers are able to pay increases the instability of global oil prices.
As I've said many times in the past, Peak Oil is far more immediately threatening to human societies than climate change. In fact, the economic results of Peak Oil will largely negate the contribution of human greenhouse gases to observed climate variation.