History of Civilization & Climate Change
From learning-mind
As the history of civilization proves, we are not the first
who have managed to influence the Earth’s climate.
Since 2014, each year the scientists have been warning that
that was the hottest year since 1880. The Earth’s pre-industrial average
temperature was 57. 3 Fahrenheit or 13.6 Celsius. According to numerous sources
in the past several years, the planet’s temperature has risen for more than 1
degree Celsius while an increase of just one more degree could mean a disaster
of epic proportions. The Earth’s surface temperature has been continually
rising for forty years. In June 2016, the average temperature was 1.3 Celsius
above the pre-industrial level and all signs show that it will continue to rise.
Researchers from all over the world agree that this is our
own fault and if we wish for our civilization to grow and prosper, we need to
take immediate action. As the history of civilization proves, if we create our
own doom, we wouldn’t be the first. Humans before have managed to influence the
Earth’s climate and cause their own destruction.
Current state of things
Does the term crazy scientist sound familiar? Well, that’s
the term most relevant authorities used to describe scientists who first
started pointing out the dangers of prolonged emissions of CO2. For those of
you unfamiliar with this gas, it’s what made Venus boiling hot and what creates
the greenhouse effect. Since the start of the industrial age, enormous
quantities of this gas have been released into our atmosphere. Nobody knows
what effect it can have on the future of our planet because it never happened
before. What we do know is that our home is warming up. The consequences are
numerous and they include melting of the polar ice caps, which in turn could
cause sea level to rise by 10 to 40 meters. Just this scenario could wipe out
the civilization as we know it.
In November of 2015, world’s greatest powers met in Paris to
discuss the strategies for tackling the dangers of the global warming. The
result was the Paris agreement which aims to:
Holding the
increase in the global average temperature to well below 2 °C above
pre-industrial levels and to pursue efforts to limit the temperature increase
to 1.5 °C above pre-industrial levels, recognizing that this would
significantly reduce the risks and impacts of climate change.
On April 22, 2016, 179 countries signed the agreement in New
York, but only 20 countries ratified it, which is not enough for the treaty to
enter into force. This could be a historic point for our planet because it
takes a collective effort from all the countries in the world to stop what
could be the downfall of our civilization.
Climate change and the birth of culture
In order to get to the point at which we are able to
influence Earth’s climate, our species needed the climate in which it could
thrive. The Last Glacial Period ended around 12.000 years ago, which allowed
our civilization to flourish. The most important factor for the growth of a
civilization is a steady source of food. Areas of our planet with warm climate
gave birth to the first great civilizations like Egypt or Mesopotamia.
Science, art or any form of culture would be impossible
without the adequate resources that allow the people to dedicate a sufficient
amount of time to them. Before the first empires, humans were mostly hunters
who spent their time in search of food, much like all other animals. Somewhere
between 7000 and 5000 thousand years ago, the Earth’s climate stabilized,
resulting in a period of prosperity. Still, by burning a lot of trees, our
ancestors prevented an ice age some 6.000 years ago. Human’s ability to
interfere with the climate has been around much longer than most of us think,
and the declines of Egyptian or Indus civilizations could be partially related
to the impact they had on their environment.
Examples of major climate crisis can be traced in much more
recent history. Medieval Warm Period took place from 900 AD to 1200 AD and
Little Ice Age lasted from 1300 AD to 1700 AD. The results of both these events
were hunger, epidemics, and wars. Culture and science decline each time weather
conditions change because the primal needs and instinct for survival take over.
If the Earth’s atmosphere continues to absorb high amounts of greenhouse
gasses, we might witness the greatest climate change since the Last Glacial
period.
Despite all of these factors, mankind isn’t the only one to
blame for the great shifts in the Earth’s climate. The amount of sunlight and
other cosmic circumstances play a large role in the faith of life on our little
planet.
Space and the climate on Earth
There would be no life on Earth without a number of cosmic
factors that influence Earth’s climate. Our planet’s distance from the Sun is
considered to be perfect for the development of life. More importantly, Earth’s
rotation plays a huge part in determining whether we are headed for an Ice Age
or a Warm period.
The angle of the Earth’s axial tilt changes in relation to
the plane of the planet’s orbit. It goes from 22.1° and 24.5° in approximately
41.000 years. The lower angle causes less insulation and conversely the higher
angle results in a higher amount of insulation. Scientists think that all major
changes in the climate are caused by the variations of the angle of the Earth’s
axial tilt.
The current shift is going toward the 22.1° angle and at
this point, we should be witnessing the first indications of an Ice Age, but
this isn’t happening because of the global warming. Simply put, Earth is
heating up instead of cooling down. It seems like we are able to disrupt
processes that take thousands of years just by producing ridiculous amounts of
CO2. The fragile balance of conditions that made life on Earth possible could
easily be disrupted if our civilization doesn’t realize what it is doing to the
environment that gave us life.
The history of carbon dioxide emissions
The Anthropocene or the anthropogenic era is an epoch in
which civilizations are so advanced that they have the ability to have a
significant impact on Earth’s geology and ecosystem. It is the common opinion
that the anthropogenic age started 200 hundred years ago with the Industrial
Revolution. Scientific studies have discovered that the levels of C02 and CH4
first altered Earth’s atmosphere thousands of years ago.
The early cultures started the process of deforestation,
some 8000 years BC, which caused the planet to progressively warm up. Processes
similar to this one, which increased the level of greenhouse gasses in the
Earth’s atmosphere, repeatedly happened in the history of civilization. Some of
the major catastrophes in the past, like bubonic plague, were accompanied by an
increase in CO2 emissions.
The amounts of greenhouse gasses that are currently being
released into the atmosphere are the highest ever recorded. If cutting and
burning trees 8000 years ago stopped an Ice Age, could you imagine what
thousands of cars and factories can do to our planet? Hunger, wars, and
diseases are an optimistic scenario, what is more likely to happen is that
temperatures will rise so much that the surface of our planet will become
inhabitable and the air will become unfit to breathe.
This is a turning point in the history of civilization and
it will take a collective effort from all people on Earth to protect our planet
and continue the growth of our species. Hopefully, we will not repeat the
mistakes of our ancestors, mistakes that caused them years of hardship.
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