Energy at the Xtreme edge

By Michael T Klare

The debate rages over whether we have already reached the point of peak world oil output or will not do so until at least the next decade. There can, however, be little doubt of one thing: we are moving from an era in which oil was the world's principal energy source to one in which petroleum alternatives - especially renewable supplies derived from the sun, wind, and waves - will provide an ever-larger share of our total supply. But buckle your seatbelts, it's going to be a bumpy ride under extreme conditions.

It would, of course, be ideal if the shift from dwindling oil to its climate-friendly successors were to happen smoothly via a mammoth, well-coordinated, interlaced system of wind, solar, tidal, geothermal, and other renewable energy installations. Unfortunately, this is unlikely to occur. Instead, we will surely first pass through an era characterized by excessive reliance on oil's final, least attractive reserves along with coal, heavily polluting "unconventional" hydrocarbons like Canadian oil sands, and other unappealing fuel choices.