Simply talking about Peak Oil

Here is a document from the US Department of Energy simply talking about the risks of a Global Oil Peak. The document was written in 2005. It states that we have between now and 2025 before global oil production peaks. It also gives 3 scenarios for action.

1.) Take no action until the peak is here.
2.) Take action 10 years before the peak.
3.) Take action 20 years before the peak.

Assuming the peak has already past, the major problem that our civilization faces is that we may have already decided on option 1. We do not really know if we have peaked in oil production or not. We can only look at a peak after it has happened.

http://www.netl.doe.gov/publications/others/pdf/Oil_Peaking_NETL.pdf