Peak Oil Primer
The shorter version: The end of civilization as we know it, within our lifetimes. More information can be found here...
The Second Half of the Age of Oil now dawns, and will be marked by the decline of oil and all that depends on it, including financial capital. It heralds the collapse of the present Financial System, and related political structures, speaking of a Second Great Depression.
But there are survival strategies. Governments may be persuaded to sign the Depletion Protocol whereby imports are cut to match world depletion rate, such that world prices fall into reasonable relationship with cost, and profiteering from shortage avoided; the current monumental waste of energy may be reduced; renewable energies from wave, tide, wind, solar, hydro and geothermal sources may be brought in; and the nuclear option re-evaluated.
The survivors, whose numbers may not greatly exceed those of the pre-oil age, may find silver linings as they rediscover rural living, regionalism, diversity and local markets, coming to live in better harmony with themselves, each other, and the environment in which Nature has ordained them to live. But the transition will be a time of great tension, including international tension as consumers vie for access to dwindling supplies, and as city life becomes unsustainable.