our planet in all of its majesty is perfectly designed for harboring life
the four seasons on this earth from spring to summer to autumn and winter
have enabled a civilizations not only step to the symbiotic rhythm of our
earth but they have also allowed societies to form and blossom over
thousands upon thousands of years in the safety of the season we may not realize
it but this delicate balance makes earth an incredibly rare thing and is down to
an even rarer event our planet is tilted and incredibly specific 23.5 degrees and
that tilt is down to an even more specific event that occurred roughly 4.5
billion years ago and if that never happened well life on Earth would look a
lot different let's find out hello Internet what's going on and once again
welcome back to the most inquisitive channel on YouTube life's biggest
questions as per usual I'll be listen body flowing voice Jack Finch as today
we cure ask the question what would happen if the earth wasn't tilted the
point is when we're talking about the earth being or not being tilted we have
to first talk about the reason why it's tilted in the first place in an event
that occurred 4.5 billion years ago forging our planet into the wonderful
place that it is today so let's get to it the giant impact hypothesis sometimes
referred to as the big splash or the Thayer impact is an event that occurred
in the Hallion eon roughly 100 million years after the solar system coalesced
where an astronomical body the size of Mars collided with earth approximately
4.5 billion years ago the colliding body which is sometimes called Theia suggests
that not only did the moon form out of the debris left over from the event but
it is also the reason that set our earth on is very specific 23.5 degree tilt in
fact even more specifically earth currently has an axial tilt of about
twenty three point four four degrees the value of which remains about the same
relative to a stationary orbital plane throughout the cycles of axial
precession essentially in layman's terms earth's tilt varies over a 41,000 year
progression and at present it is decreasing a rate of around forty-seven
minutes per century this is completely natural and it is part of the reason
that Earth has had a waxing and waning period of glaciation throughout its
ancient history otherwise explained in a process
known as the Milankovitch cycle also that's not to excuse the fact that
manmade climate change is having a devastating effect on this natural
processing currently nothing has influenced the Milankovitch cycle more
so than fossil fuel admission so move over climate change deniers you have no
power here but that is a conversation for another time the point is without
this incredibly important axial tilt it is highly likely that our civilization
would have never existed and if it did life on Earth would certainly not
resemble what it does now and that is down to Earth's seasonal cycle where
over the course of a single year the amount of sunlight striking the northern
and southern hemispheres varies as they essentially wobble back and forth first
the southern hemisphere leaning Sun would and then the north spring summer
autumn winter it is why our ancient ancestors held such a reverence for the
changing seasons the summer and winter equinoxes a period of natural change
that enabled the sustenance of life and simply speaking if our earth wasn't
tilted we would have no seasons so what would an earth with no seasons look like
well first things first the Arctic and Antarctic regions would get Sun every
single day of the year and eventually the fluctuating extremes of cold of
those regions would not exist there would still remain to be the coldest
part of the world but that would be a permanent endless winter no 24-hour days
of sunlight and no midnight Sun either regular all day and night and always
cold in fact the whole of earth would be stratified into permanent climate bands
progressively getting colder the more we moved away from the equator essentially
making the tropics the only habitable zone for humans if we don't want to
freeze to death the reason being well humanity can't
survive with a permanent winter even in the coldest parts of the world in Alaska
and northern Canada specifically the people that make that part of the world
their home rely on the consistent cycle of season without that humanity would
have never survived the continuous winter of these high latitudes and we
would have had to have congregated in the planets midsection and welcome to
the archetype of this seasonless earth where the only habitable region would be
an eternally humid tropical zone similar to the rain forests of the world with
unrelenting rainfall and if you think it would be difficult to live in the POE
regions well the tropics would be just as challenging you see the thing is if
you haven't figured out by now the seasonal importance of Earth based on
its specific axial tilt is the key component in how humanity developed from
being small tribes of hunter-gatherers to the vast advanced civilizations that
we see now and that's down to one thing agriculture it is impossible to
naturally develop agriculture which in turns of stainle ever growing needs of
an advancing society without seasonal change the seasons are the engine of
Earth and in this tropical midsection of Earth it would pretty much be constantly
raining down to the sustained humidity of the region and this unrelenting
rainfall would quickly erode soil in any areas that were cleared for farming
leeching vital nutrients down below the root level essentially rendering any
tilled land completely infertile for crops essentially we could survive there
in terms of temperature but we would have quickly starved if we would have
ever want to develop past small tribes of hunter-gatherers ie no civilization
guys obviously this is accounting for the fact that in this hypothetical
scenario earth has never been tilted rather than applying the lack of tilt to
today's society because if that was the case then yeah technology may have a
chance of solving the agricultural issue but there's another far more deadlier
challenge to face in a seasonless earth winter is a vital season partially for
its importance as a reset for the other three seasons but also for another fact
cold preserves winter has predicted a civilization from tropical insects and
diseases since the dawn of humanity by stifling the growth of deadly pathogens
and their insect carriers without a seasonal cycle most of the tropical
areas of the planet would be rife with plague pestilence and disease again
massively hindering the growth of civilization it's bad news all around
you see the fact that our planet is so perfectly designed to harbor life is
down to such a delicate balance that was brought about by an infinitely
improbable chance event that any shift in the earth state would have likely
altered the evolutionary course of life without the seasons it is highly likely
that life on this planet would have evolved into a completely different form
down to the fact that without that 23.5 degrees tilt Earth's biosphere would be
completely unrecognizable there would be no need for mammals to have hibernated
in winter there would be no need for birds to
migrate there would be no need for breeding seasons or for trees to shed
their leaves or any other of the millions of tiny intricate systems that
have proved irreplaceable in the delicate balance of life on earth life
on this planet owes his existence to a chance event
that occurred 4.5 billion years ago that literally set the course for human
history and without it this question would have
never been asked now there's a thought of you whether we have it out long it's
your answer to the question what would happen if the earth wasn't tilted we'd
have never answered this question and we'd all probably be lizards well what
do you guys think do you agree disagree have any more intriguing insights to out
the let us know your thoughts down in the comment section below as well as
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