The total planetary endowment of conventional nonrenewable liquid oil was… two trillion barrels before humans started using it [and possibly more, as… - James Howard Kunstler

There have to be limits. If we project “housing starts” ninety-nine years forward at current rates, there wouldn’t be a single buildable quarter-acre lot left in the world. Not a few economists would rationalize this outcome by declaring that [in] ninety-nine years from now we will have colonies on the moon or Mars or under the . Or that technology coupled with human ingenuity will solve the problem some other way, […] by genetically reengineering human beings to be one inch tall or booting all our consciousnesses into computer servers where unlimited numbers of virtual people could dwell in unlimited virtual environments of endless cyberspace.
More likely, we will remain confined to the planet Earth. Economic growth that has appeared normative and desirable during the story of industrialism is already becoming pathogenic in an economy showing more… signs of positive feedback and accelerating positive entropy manifesting as damage to the biosphere. High entropy becomes particularly problematic in an economy utterly dependent on a few… commodities […]. It becomes especially relevant when the limits to those commodities become tangible, as is now the case as we approach the global oil production peak and the actual depletion (thirty years past peak) of the North American natural gas endowment. But the collective imagination of the public cannot process the notion of a nongrowth economy, even though the limits to growth are visible all around us in everything from the paved-over suburban landscapes to the steeply rising gas prices, to played-out aquifers, to the death of the Atlantic cod fishery. We are not capable of conceiving another economic way. We are hostages to our own system.

It has been estimated that the world human population stood at about one billion around the early 1800s, which was roughly about when the industrial adventure began to gain traction. It has been inferred from this that a billion people is about the limit that the planet Earth can support when it is run on a nonindustrial basis. World population is now past six and a half billion, having more than doubled since my childhood in the 1950s. The mid-twentieth century was a time of rising anxiety over the “population explosion.” The marvelous technological victory over food shortages, including the “green revolution” in crop yields, accelerated that already robust leap in world population that had begun with modernity. Dramatic improvements in sanitation and medicine extended lives. Industry sopped up expanding populations and reassigned them from rural lands to work in the burgeoning cities. The perceived ability of the world to accommodate these newcomers and latecomers in a wholly new disposition of social and economic arrangements seemed [to] be the final nail in the coffin of Thomas Robert Malthus, the much-abused author of the 1798 [groundbreaking work] An Essay on the Principle of Population as It Affects the Future Improvement of Society.

Above all, and most immediately, we face the end of the cheap fossil fuel era. It is no exaggeration to state that reliable supplies of cheap [and easy-to-find hydrocarbons like] oil and natural gas underlie everything we identify as a benefit of modern life. All the necessities, comforts, luxuries, and miracles of our time–, , , , , , , , , , surgery, the , you name it–owe their origins or continued existence in one way or another to cheap fossil fuel. Even our nuclear power plants ultimately depend on cheap [and easy-to-find hydrocarbons like] oil and gas for all the procedures of construction, maintenance, and extracting and processing nuclear fuels. The blandishments of cheap oil and gas were so seductive, and induced such transports of mesmerizing contentment, that we ceased paying attention to the essential nature of these miraculous gifts from the [deep] earth: that they exist in finite, nonrenewable supplies, unevenly distributed around the world. To aggravate matters, the wonders of steady technological progress under the reign of oil have tricked us... [in]to believ[ing] that anything we wish for hard enough can come true. These days, even people in our culture who ought to know better are wishing ardently that a smooth, seamless transition from fossil fuels to their putative replacements... lies just a few years ahead… [but] this is a dangerous fantasy. The true best-case scenario may be that some of these technologies will take decades to develop–meaning that we can expect an extremely turbulent interval between the end of cheap oil and whatever comes next. A more likely scenario is that new fuels and technologies may never replace fossil fuels at the scale, rate, and manner at which the [industrial] world currently consumes them.