Civilization and Beyond: Learning from HistoryNearing, Scott
History
Civilization and Beyond: Learning from History
Nearing, Scott
Civilization -- History
We have all been in homes where neatness, usefulness and good taste
abound. We have been in villages and towns where the same conditions
prevailed. On the other hand, we have been in situations that can be
described only by the words littered, disorderly, chaotic. We have also
seen neat orderly homes in disorderly, slovenly neighborhoods. Much
depends upon who makes the decisions and whether the plans that are
carried into effect promote or obstruct the ultimate purpose.
At the moment, we have the satisfaction of orderly, beautiful
neighborhoods at the same time that we are surrounded by a disorderly,
littered, chaotic international battleground.
The earth with its oceans and its atmosphere is a storehouse containing
many if not most of the essentials for survival, growth and development,
for mankind as well as a multitude of other life forms. Perhaps its most
valuable single asset from the human viewpoint is its topsoil. Topsoil
plus light, air and moisture provide the elements necessary for
producing vegetation. Vegetation, in its turn, furnishes the nourishment
on which animals thrive.
At the top of our priority list for the well-being of the earth stands
the injunction: conserve and build topsoil.
Topsoil is lost through erosion--wind erosion, water erosion, erosion
through over cropping. It is held in place by stones, grasses, and the
roots of shrubs and trees. Untouched by human hands, on the prairies and
in the forests, topsoil is deepened year by year as winter frosts break
up soft rocks, as dead grasses, leaves, twigs break down into humus, to
become part of the topsoil and provide the nourishment for a new round
of vegetation.
Topsoil is renewable, replaceable. Lost through cropping and erosion, it
may be rebuilt and deepened by natural processes. In temperate climates
with normal rain and snowfall, the topsoil of grasslands or a forest may
be deepened year by year and century by century. Topsoil may also be
deepened by dust storms that pick up particles of humus from dry lands
and carry them to moister areas.
Through a carefully controlled sequence, semi-desert lands planted first
to grasses and then to shrubs and trees can be protected against wind
erosion. As vegetation flourishes it increases dew formation and
rainfall. Plant roots prevent runoff and retain the water in gulleys and
low places. Evaporation builds up moisture content in the atmosphere.
Water vapor forms drops and falls in rain or snow.
Foresighted husbandry not only prevents erosion but, practiced on a
sufficiently broad scale, increases air moisture and modifies
climate--the weather.
We are less fortunate with some of the critically important minerals
that make up the earth crust.
Public-domain text, read in full here on John Shaqi.
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