In a similar vein to what Drake suggested, making a day for Peak Oil holds two other problems.

First, raising awareness may bring about some panic, and increased traffic of deniers and the uninformed.

Second, Peak Oil Day is like Earth Day in that it promotes assigning responsibility for energy or the environment to a single day. Earth Day, ok, plant a tree. Next week after the party, throw all the plastic in the garbage. Peak Oil Day, ok, leave the Hummer here and let's take our bikes to the solar cookout. Next week, back to shopping at the national grocery chain.

Peak Oil Day would need to be about something more substantive with direct, measurable goals in mind, and the event would need things, skills, or understandings which are immediate, practical, useful, and directly related to peak oil for the impacts last more than a day.

The difference between practical and useful? An understanding of thermodynamics is useful, but it's not practical to teach science theory at a picnic.