Posted on 12/02/2021 1:06:29 AM PST by blueplum
As our living ark swings around the Sun, its current loop is fairly circular. But Earth's orbit isn't as stable as you may think.
Every 405,000 years, our planet's orbit stretches out and becomes 5 percent elliptical, before returning to a more even path....
... Beaufort and team suggest the lag seen between orbital eccentricity and changes in climate could hint that "coccolithophores may drive – rather than just respond to – carbon cycle changes."
In other words, these minuscule little organisms, along with other phytoplankton, may help change Earth's climate in response to these orbital events....
(Excerpt) Read more at sciencealert.com ...
They report this, then turn around and claim man controls the climate. Insanity in an age of madness.
Algore warned us!
I am sure it is America’s fault. S/O
later
Earth’s orbit must be changed! /MSM
So the problem is fluctuations.
Asian guy: Could you repeat that last word please, a bit louder?
Stop Continental Drift. When do we want it? NOW!
Greta to the Earth: “How Dare You!!!”
Lol
To me, this is a clear example of Fake Science and Confirmation Bias. A key quote is: “We posit that eccentricity pacing of phytoplankton evolution contributed to the strong 405,000-year cyclicity that is seen in global carbon cycle records.” Note, this is a ‘posit’, an assumption put forward as the basis for an argument. It’s not a ‘Theory’, not a ‘Hypothesis’, not even a ‘Conjecture’, the least of any scientific statement. Yet the 405,000 year and 100,000 year orbital eccentricity “cycles” are presented as fact.
There have apparently a number of studies of geologic records that find cycles hinting of repetitions at this length. The problem is that NO orbital periods have been found at 100,000 years or especially the precise 405,000 years. Existence of these is merely speculation. Look up “Milankovitch cycles” from any source and you will find that these orbital cycles have been studied for years, and none longer than about 40,000 years are known.
I attempted to follow the links and the links to the links in the articles, and no source 100,000 year and 405,000 year orbital cycles were there. There were discussions of 405,000 year geologic cycles, but no known orbital cycles.
took me a second, but yeah, LOL!
Bro, huh?
I did just search on Milankovitch cycles and all the links showed 4 cycles:
https://en.wikipedia.org/wiki/Milankovitch_cycles
Orbital eccentricity
The major component of these variations occurs with a period of 413,000 years (eccentricity variation of ±0.012). Other components have 95,000-year and 125,000-year cycles (with a beat period of 400,000 years). They loosely combine into a 100,000-year cycle.
Axial tilt (obliquity)
The angle of the Earth’s axial tilt with respect to the orbital plane (the obliquity of the ecliptic) varies between 22.1° and 24.5°, over a cycle of about 41,000 years.
Axial precession
Axial precession is the trend in the direction of the Earth’s axis of rotation relative to the fixed stars, with a period of 25,771.5 years.
Apsidal precession
The orbital ellipse itself precesses in space, in an irregular fashion, completing a full cycle every 112,000 years relative to the fixed stars.
btt
You got me there! I actually did look up Milankovitch Cycles on Wikipedia, but only to get the spelling correct. I didn’t read enough to find the quote you listed.
I’ve been going by articles on Ice Age Cycles indicating that the approximate 100,000 year Ice Age repetition rate is third order of the longest Milankovitch cycle, not once per cycle, and also the start of the Ice Age, some 500,000 years ago is unexplained. Maybe Wikipedia has something here. It’s often too Left biased to be meaningful.
Not fluctuations-correct spelling is flatulence- caused by cows.
There are a lot of these types of stories out there. Ones where folks who happen to be, or are associated with, those who “flagrantly disregard” mask rules or speak out against the vax, die of COVID. Two just this week alone. Ironic... isn’t it?
According to most geologists, the current pre-Ice Age
era started when Antarctica drifted over the South Pole: It’s ice cap began over 25 million years ago! This pulled a lot of moisture out of the atmosphere and significantly dried out the rest of the Earth. Supposedly, the dryer air meant less jungle or forest that ranged from Europe, across Africa and all the way to East Asia. This was a time when monkeys were evolving into apes and at the time, 25-20 million years ago, ape species were at their highest diversity. As time went on, these forests, due to global cooling and drying, turned into savannas, and some apes became bipedal, perhaps to walk upright and see over the tall grass—couldn’t compete with other ape’s ownership of the remaining forests, so were stuck out in the borderlands and couldn’t climb the much fewer trees to escape predators (total speculation here). By 10-7 million years ago, supposedly these kinds of apes split off from the orangutan/gorilla-chimp line and became hominids.
They also say that when, again due to continental drift, South America connected to North America thru the newly formed Panama isthmus around 2.5 million years ago, and the Tethys ocean -between Asia and East Africa (the area is now Southern Iran thru Turkey and Saudi Arabia) disappeared this cut off the circumglobular oceanic warm current, which cooled the Northern hemisphere so much that the truly big glaciers we think of really started to form over North America and Europe.
So supposedly we’re still in an Ice Age—just a warm interglacial—that started 12,000 years ago. Milankovitch cycles explains how the entire 2.5 million year current Ice Age, of maximum glaciation to interglacials, actually works.
I attempted to follow the links and the links to the links in the articles, and no source 100,000 year and 405,000 year orbital cycles were there.
~~~~
The 100,000 cycles described by Milankovitch are not cyclic changes in earth’s orbit. They are merely geometric coincidences. Earth’s rotational axis tilts at roughly 23 1/2 degrees. On a 100,000 year timescale the tilt is relatively stable. Earth’s orbit, though mostly circular, still is a couple of percent oval. The major oval orbital axis constantly rotates around the sun, as all oval orbital axes do. The period of this orbital axis rotation is 100,000 years. Currently earth’s orbital axis places earth closest to the sun as the southern hemisphere tilts toward the sun.
Oceans absorb solar radiation far better than continents.
Continents reflect more solar radiations than oceans. The southern hemisphere contains far more ocean than the northern hemisphere, so when the southern hemisphere points at the sun during its orbital closest pass the earth warms. This warming has lasted 10,000 years, and will last another 10,000 years until earth is plunged into another 80,000 year ice age as earth’s orbit points the southern oceans off into space at earth’s annual closest pass to the sun.
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