Thanks Oldeconomybuyer. Meh.
Posted on 04/14/2022 1:54:46 PM PDT by Oldeconomybuyer
A colossal simulation of the past two million years of Earth’s climate provides evidence that temperature and other planetary conditions influenced early human migration — and possibly contributed to the emergence of the modern-day human species around 300,000 years ago.
The finding is one of many to come out of the largest model so far to investigate how changes in Earth’s movement have influenced climate and human evolution, published in Nature today. “This is another brick in the wall to support the role of climate in shaping human ancestry,” says Peter de Menocal, director of the Woods Hole Oceanographic Institution in Falmouth, Massachusetts.
Axel Timmermann, a climate physicist at Pusan National University in South Korea, and his colleagues ran a climate model on a supercomputer for six months to reconstruct how temperature and rainfall might have shaped what resources were available to humans over the past few million years. Specifically, the researchers examined how long-term fluctuations in climate brought about by Earth’s astronomical movement might have created the conditions to spur human evolution.
The model suggests that the distribution of H. heidelbergensis across the globe was possible because a more elliptical orbit created wetter climate conditions that allowed the species to migrate more widely. The simulation also showed that the most habitable regions, in terms of climate, shifted over time, and the fossil record tracked along with them.
Most researchers that spoke to Nature say that more evidence will be needed to prove that astronomical cycles influenced the trajectory of human ancestry. “If solving the mystery of climate change and human evolution could be dealt with in one paper, it would have been done 40 years ago,” Faith says.
Which is why Timmermann and his colleagues are planning to run even larger models, including ones that integrate genetic data.
(Excerpt) Read more at scientificamerican.com ...
Climate changed a lot over the 200,000+ years.
Geologist have found river beds found in the Sahara, land bridges from Asia to Japan, Europe to UK, Eurasia to North America,(that’s the route the early Native Americans took), that the Mediterranean Sea had almost totally dried up and prehistoric shark fossils in what is now a desert in Peru.
All before we ever discovered evil oil!!
“The global collection of skulls and tools is not randomly distributed in time,” Timmermann says. “It follows a pattern” that overlaps with climate change driven by Earth’s movement. “This is amazing to me — here is a pattern that nobody so far was able to see.”Given this 'large' model, they should easily be able to predict climate change driven by Earth’s movement into this millennium and beyond.One part of this pattern might provide fresh insight into where and how our own species emerged.
The problem with ALL dedicated 'climate change' models is that when they are applied to Earth's past they ALL fail.
It would be interesting had they reported on what the model output for current climate and speciation...
...but they DO NOT.
Another “science” article using the words “probably” and “could” and “might” and “possibly” = pseudoscience.
The article seems to claim that mankind didn't create "climate change" and "global warming". Gee, imagine that. The Earth's climate changes and causes weather, that affects humans - not the other way around!
Not a lot of difference between Sapiens and Neanderthal. A Neanderthal could walk down the street in modern clothes and not seem out of place. They had fire and homes and buried their dead and took care of their sick. Like any hunter-gatherer civilization. A lot of the characterization of Neanderthals came from earlier anthropologists who assumed they had to be more apelike and assumed behavior patterns that aren’t in evidence.
I wonder if they bothered to include all the huge volcanic eruptions over the last 2 million years. We almost went extinct when Toba went off.
I think we’ve migrated for all sorts of reasons that have little to do with climate. Not least is the basic human urge to explore and find something new.
“..his colleagues ran a climate model on a supercomputer for six months...”
Simulation?
Sounds like too much financial stimulation.
There’s been some tectonic plate stuff involved in “measured” “Climate Change” at given spots around the current world, but maybe not so much over just 200k years.
Where’s their 10 year prediction?
That, too. Right???
I think it’s bit of both. The area that the hunter/gathers lived in some 300,000 years ago, starts to get warm they move north and visa versa. (Well for half the planet)
Ever see a drawing of a dinosaur with a fern next to it as tall as it is? That’s because the CO2 level was 5xs what it is now (More CO2, bigger plant), possibly due to increased volcanic activity.
Love Geology (although it’s no where close to my love of cooking!) and it pretty much supports MAJOR climate changes even pre-people. (Changes in earth’s axis, sun’s temperature, number of sun spots, volcanic activity, etc.)
I don’t believe anything man does has anything to do with climate change. Some are just looking at it as a way to cause fear and gain control. (Think Klaus Schwab. He talks about it in one of his great reset speeches.)
Remember “OMG, THE ICE AGE IS COMING!!” when we were kids? This BS started almost 60 years ago!
Historically, climate changes have always driven migrations. Nothing new here except it’s not happening now.
Thanks Oldeconomybuyer. Meh.
Scientific American, American Scientist, Popular Science, Popular Mechanics, and many more went to hell in the mid-1970's. At one time or another I subscribed to all of them.
Not any more.
Thanks rdl6989.
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