Running on Empty by '92
Limits to Growth's Table 4 Put Known 1972 Oil Reserves on a ~20-Year Exponential Clock Ending Around 1992
As the Club of Rome's petroleum index was popularly read, proven reserves grew and the world kept pumping past the countdown.
What was claimed (paraphrase)
Limits to Growth predicted that at 1972 rates of growth the world would run out of ... petroleum by 1992
— Donella Meadows et al. (The Limits to Growth, Club of Rome, 1972) — Table 4 exponential reading · said 1972 · due Petroleum exhausted by about 1992 (Table 4 exponential index)
Petroleum did not run out in 1992. Bailey (Reason): at the book's own exponential index, 1972 known oil lasted ~20 years. Proven reserves later rose; the world kept pumping.
The Story
The Club of Rome did not need a prophet. It had a table. Column 5 asked how long 1972 known reserves last if consumption grows exponentially; for petroleum the answer was about twenty years. Readers heard 1992. Drillers heard opportunity. Half a century on, the countdown clock is still trying to clear customs.
Receipts
One claim only: oil via Table 4 exponential index (~20 years from 1972 → ~1992), as Bailey reconstructs. Authors also ran longer scenarios; the popular exponential reading is what the Tribune scores here.
- After 53 Earth Days, Society Still Hasn't Collapsed — Ronald Bailey, Reason (April 22, 2022)accessed 2026-10-24
- The Limits to Growth — Wikipediaaccessed 2026-10-24
See also
- Princeton Geologist Named Thanksgiving Day 2005 'World Oil Peak Day.' Output Kept Climbing for Years
- T. Boone Pickens to the Senate, 2008: World Oil Has 'Peaked Out at 85 Million Barrels a Day.' It Hit 100
- Ali Samsam Bakhtiari, 2006: World Oil Output Falls 'Roughly 32 Per Cent' to 55 Million Barrels a Day by 2020
As of Oct 25, 2026
since it didn't happen
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