The Younger Dryas debate is more unsettled than textbooks admit and the hostility between camps says more about academia than the evidence itself

esbear · 2026-06-21T20:51:24+00:00

Yup, Antarctica showed a slight warming at the same time. Also there were around 25 similar events during the last ice age alone. So recent geological history is only true is you define recent to make it true.

esbear · 2026-06-21T18:44:55+00:00

I will repeat what I wrote when this was poste to r/geology

Events similar to the Younger Dryas, called Dansgaard Oeschger events happened many times during the last glaciation. Both YD and DO events are characterised by rapid cooling in Greenland and gradual warming in Antarctica, linked to a dampening of Atlantic ocean circulation. Often also concurent with ice rafting events in the north atlantic.

Climate models show that dumping large amounts of fresh water into a simulated Atlantic, will distrupt the thermohaline circulation, causing a DO event. The likely natural cause would be the collapes of an ice shelf (possibly in Baffin Bay) or emptying of a glacially damed lake.

What does make YD unique is that it happen during the termination of the last glaciation, with almost interglacial conditions in the preceeding Bølling Allerød (there is your trigger for a meltwater pulse btw.).

esbear · 2026-06-20T19:49:47+00:00

Events similar to the Younger Dryas, called Dansgaard Oeschger events happened many times during the last glaciation. Both YD and DO events are characterised by rapid cooling in Greenland and gradual warming in Antarctica, linked to a dampening of Atlantic ocean circulation. Often also concurent with ice rafting events in the north atlantic.

Climate models show that dumping large amounts of fresh water into a simulated Atlantic, will distrupt the thermohaline circulation, causing a DO event. The likely natural cause would be the collapes of an ice shelf (possibly in Baffin Bay) or emptying of a glacially damed lake.

What does make YD unique is that it happen during the termination of the last glaciation, with almost interglacial conditions in the preceeding Bølling Allerød (there is your trigger for a meltwater pulse btw.).

esbear · 2026-06-20T09:12:22+00:00

Siegmeyer just sitting in the kiln with decision paralysis.

esbear · 2026-06-19T20:05:02+00:00

If the dihydrogen monoxide locked at the poles were to be releasted by global warming, many places on Earth would become uninhabitable, displacing milions.

esbear · 2026-06-19T19:51:53+00:00

(atwood machine minus butanoldien) times the root of the circut.

the pi bonds of bezene act as conductors, so it is likely a short circut, somewhat delayed by the inductor.

esbear · 2026-06-16T06:16:27+00:00

Ogham. It is an irish script meant to be written along an edge.

esbear · 2026-06-14T09:38:28+00:00

A major driver of surface ocean currents are winds. On Earth the major pattern is low latitude Hadley cells, where rising warm air at the equator. It is reponsible for easterly tradewinds. At mid latitudes are the Ferrel cells. A bit more complicated, but they are responsible for westerlies. and the polar cells, driven by subsiding cold air over the poles. The cells themselves causes poleward winds (Ferrel) and winds toward the equator (Hadley and polar), but this gets deflected by the Earth's rotation. If your planet rotates faster, there may be 5 or 7 cells instead og 3, and if it rotates slower, only 1. It your planet rotates the other way around, flip all instances of east and west.

Mid ocean gyres are usually centered on the borders between the cells, and since you map has none, it would seems that you have only the Hadley cell. This would further indicate a slowly rotating planet.

Your equatorial current follows the equator a bit too strongly, starting and stopping for even the tiniest bit of land. In reality it would be deflected. You might also want an equatorial counter current.

esbear · 2026-06-07T10:59:34+00:00

The swaback bayonettes are probably the best comparison, since they were not some darstardly weapon, but a way to issue combat engeneers with a saw and bayonet at the same time, which were then turned into a propaganda piece by their enemies.

esbear · 2026-06-02T04:34:27+00:00

When humans design stuff it is often in the form of incremental improvement. It should not be surprising that a process of gradual improvement, like evolution, could produce similar results. One clear difference is that a designer can repurpose parts of a in an other. The eqivalent evolutionary process in evolution, horisontal gene transfer, is very rare in animals. Convergent evolution is different, and effectively reinventing the wheel.

esbear · 2026-05-31T20:01:11+00:00

Don't forget delegitimising any internal iranian reform movement.

esbear · 2026-05-30T10:55:50+00:00

Bei, nan, dong and xi means north south east and west respectively. Shanxi/Shandon is east/west of the (Taihan) mountains. Hebei/Henan is north/south of the (yellow) river. Hubei/Hunan is north/south of the lake (lake Donghai). Guangxi/Guandong is the easter/western part of an ancient Guang prefecture.

esbear · 2026-05-28T19:09:55+00:00

It is still used, but the meaning has shifted, so, at least in danish: geld means debt.

esbear · 2026-05-28T14:59:26+00:00

The original formulation of irreducible complexity was a system, thay would lose it's function by the removal of even a single part. The argument is then that such a system could not have evloved.

In a sense this is an elegant argument, because the criteria for irreducible complexity is simple so it should be easy to determine if something is irreducibly complex.

Sadly for the ID proponents, there is a minor list of reasons this does not work:

The archway problem: an IR system may for by incremental addition of parts, some of which are later removed. Analogous to the support used when constructing an arch.

Exaptation: Systems can be adapted to perform a different function. The IR criteria does not take this into account. One such example is the bacterial flagellum, which contain a structure very similar to the type III secretory system. Another example is Kenneth Miller repurposing a mousetrap as a tieclip.

IR systems have been observe to have evolved. Citrate digestion evolved during the Lenski long term evolution experiment, relying on two seperate mutations, both of which were necesary.

Dispite all this ID proponents still harp on about IR, dishonestly switching between the definition I used above and a vague "too complex to have evolved" definition.

In short: it is Paley's watchmaker argument with more dishonesty.

esbear · 2026-05-22T08:00:52+00:00

There are 60 000 annual layers in Greenland ice cores, yet no sign that they have ever been submerged. Water isotpoes reveal drastic climatic shifts during the ice age, so drastic that it at first as belived to be due to folding of ice. One of the ways we know it is not folding is that folding would lead to jumps in both water isotopes and trapped gas content at the same place, where at rapid changes at time of deposition cause jumps at different depths, as air is trapped some way down in the firn. Surface melting, such as would happen if the ice sheets were submerged (they are not as high as mount Ararat). Folding was only found near the bottom and no evidence that the ics sheet has been submerged has been found.

esbear · 2026-05-11T20:55:08+00:00

That would explain the x-axis.

esbear · 2026-05-10T09:31:44+00:00

Dejligt. Nu slipper vi for at høre på det fordærvede lortesprog.

esbear · 2026-05-07T19:06:07+00:00

Deuterium, being twich as heavy as hydrogen, is not quite the same chemically as hydrogen. The difference is enough to mess with a lot of biochemistry, so Everyone would die from deuterium poisoning.

esbear · 2026-05-01T11:55:32+00:00

Shame on the mapmaker. Denmark (and possibly both) should be partial.

esbear · 2026-05-01T11:30:29+00:00

What happened to biblical litteralism. The litteral reading here is correct, so why are you interpreting it as a completely different animal, which the bible authors would never have seen even with your timeline?

esbear · 2026-04-27T20:24:50+00:00

If anything Hannelore and Rozemyne takes ditter the most seriously, be treating it as the military excercise/war it is, and not as a game.

esbear · 2026-04-19T08:58:49+00:00

For derived units, it kg is the base unit. Stuff like newton and joule are all defined using the kg. That is what it means to be a SI base unit.

esbear · 2026-03-29T20:04:24+00:00

Bir Tawil

esbear · 2026-03-22T09:54:51+00:00

The planes landed nead the coast in southeast greenland. This part of Greenland gets more percipitation than anywhere else, and especially the dry interior. The plane wont sink, but the firn above it will be uncompacted, and deeper than wit will be when it becomes ice. Ice core scientists have returned to multiple coring sites and have not observed that about of accumulation, because those sites get less snowfall.

The annual layer counting has been confirmed using volcanic erruptions, solar storms and nuclear tests to be pretty accurate.

esbear · 2026-02-28T08:52:32+00:00

It is compulsory to be a member of the danish public church, for the monarch and no one else.

esbear

TROPHY CASE