A chart of exponential growth/depletion may be the "chart of the century."

The chart displays two lines: the blue line traces out exponential growth (for example, in demand for oil, deficit spending, etc.) while the lower lines traces out exponential depletion (for example, of oil reserves). The consequences of a "modest" 3% growth/depletion rate are striking and sobering.

Exponential Growth and Depletion Chart
Full article at: Oil, Greece and China