The booming
fire economy of the pyrocultural energy regime (cf. Part 58) led to the
emergence of agriculture. Humans observed that, when a piece of land was
charred by wildfire, it got cleared of the forest, and what is more, new plants
sprouted in the resurrected land, under certain conditions. They burnt forests
to clear more and more land for sowing seeds of edible crops. Agriculture was a
far more efficient mode for acquiring food, compared to hunting and gathering.
Thus evolved the agrocultural energy regime (Niele 2005).
The ever
present influx of solar energy and its utilization through agriculture led to
the emergence of new features like crafts, villages, a growing population, and
new energy chains. ‘Cooking’ got elevated and diversified to other technologies
like baking of bricks and making of glass, as also the processing of iron ore
(see below). Alphabet and money also emerged, among several other such things.
The inexorable march towards ever-increasing complexity continues to this day.
We now grow crystals of complex materials in the laboratory, for applications
in technology. Development of carefully patterned nanocomposites is another
such activity.
For the
agrocultural energy regime:
Energy
source:
Crops (requiring seeds, water, carbon dioxide, and solar light).
Energy
sink:
Carbon dioxide plus water.
Energy-dissipating
pathways:
Various social and cultural activities of humans.
Chief
drivers:
Humans.
As argued by Niele,
this description of the agrocultural regime must be supplanted with the socio-technological
description. With the emergence of agriculture, the nomadic way of life gave
way to a more sedentary settled-down lifestyle, leading to farms and villages.
Another
life-style-changing invention was pottery. It must have been observed that
materials used for making the hearth got hardened by the heat treatment. This
discovery led to the invention of pottery-making. Several innovations like
pots, dishes, and ovens followed. Application of the oven improved the cooking
process. Use of ceramic pots for storage of various kinds of edible items
increased their shelf life.
The
observation of the effect of heat on material properties was the forerunner of
the evolution of the empirical sciences. Invention of other metallurgical
techniques followed. Innovations resulting from these inventions include
cooking utensils, ornaments, and weapons. The increased economic diversity in
goods and trade engendered barter trade.
Niele has
listed the four anthroposystems of the agrocultural regime as:
practical
know-how;
agricultural
technology;
farming
and bartering; and
farms
and villages.
During this
regime, humans developed the quality ‘to measure reality’. According to Niele,
‘a strong signal surged around circa 1250 to 1350 near the end of the Agrocultural
Regime: this is termed the Quantificational
Signal’. This signal touched all the anthroposystems, prompting ‘modern
science, technology, business practice, and bureaucracy’ (Crosby 1997).
Another energy
revolution, namely the carbo-energy revolution, occurred ~400 years ago when
humans discovered a fuel other than wood, namely fossil fuel (coal, petroleum,
natural gas). This marked the onset of the carbocultural energy regime. The
fossil fuel had been created in the aerobic regime by the deposition of large
volumes of dead biomass deep inside the Earth’s crust. This fossilization
amounted to the conversion of carbohydrates of biological origin to mineral
hydrocarbons.
Discovery of
this new form of fuel resulted not just in its use in place of wood for
burning, but led eventually to the development of the combustion engine. This development had truly far-reaching
consequences. The engine converted heat to mechanical movement, resulting in
locomotion, electricity production, etc.
The
availability of energy in a convenient form (electricity) led to a whole new
set of societal energy-dissipating structures and emergent phenomena, apart from
a phenomenal growth in population and economies. Niele lists some of these
developments as: Quantum mechanics, antibiotics, pop music, the world-wide web,
man on the moon, cities, the United Nations, unions, buildings, vehicles,
medicines, computer networks, mobile phones, etc.
The explosive
growth in the exploitation of fossil fuels has resulted in a steady build up of
the amount of carbon emissions into the atmosphere, which is now a cause for
serious concern.
For the
carbo-cultural energy regime:
Energy
source:
Fossil fuel plus oxygen.
Energy
sink:
Carbon dioxide plus water.
Energy-dissipating
pathway:
Burning of fossil fuel in combustion
engines.
Chief
drivers:
Human activities.
The
agro-cultural regime and the carbo-cultural regime also saw the emergence of
wind power, solar power, hydroelectric power, and nuclear power. But none of
these has yet risen to the level of ecological dominance for naming an energy period based on any of them.
On the
socio-technological side, the carbocultural regime saw the grand alliance of
science and crafts, giving rise to technology as we know it today. It is based
largely on fossil fuels. Humankind progressed from ‘farms and villages’ to
‘cities and nations’.
Niele has
identified the four anthroposystems of the carbocultural regime as:
reductionistic
science;
conversion
technology;
manufacturing
and trading; and
cities
and nations.
In the next
post I shall discuss the 'Green Valley' approach being advocated by many for
addressing the menacing 'ecological footprint' problem of the carbocultural
regime.
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