Global Cooling
 

Last week, PBS NOVA aired, 'DINOSAUR APOCALYPSE', which had to do with the mass extinction event, 66-million years ago, which took out 75% of all species on Earth, including all, non-avian dinosaurs.
Something which stood out had to do with 'Impact-Winter,' created by 3-trillion tonnes of sulfur-based rock, from the Yucatan Peninsula being vaporized, and ejected into space.
Earth's gravity pulled the vaporized rock back into the atmosphere, where it gave its heat up, allowing the vapor to cool into glass spheroids, which rained down, while turning the air into a hot-air broiler, incinerating most terrestrial and oceanic life forms.
Earth was dark for about a decade, all food systems collapsed.
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The interesting part was that, the sulfate aerosols created by the asteroid impact, remained in the stratosphere long enough to cool the whole planet by 48-degrees-F. This phenomena was first discussed by Benjamin Franklin, who coined the term ,'parasol effect', which is used in today's general circulation climate models.
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Today's 'cooling' is associated with coal-fired power plant emissions, which are keeping the troposphere about 1-C cooler than it would be without the aerosols. In effect, the Earth has already warmed 2.1-C, we just won't 'feel' it, until all these plants are taken offline, and the aerosols have a couple months to precipitate out.
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If you haven't seen the show, it's worth a look. The paleontologists have reasonably demonstrated that dinosaurs were present right at the time the 'Mount Everest'- sized asteroid came in at 45,000-mph.
None, except the 'chickens' existed afterwards.

A more recent example was the week or more in 2011. DDG's top result

https://weathermodificationhistory.com › september-11-2001-airline-groundings-contrails-affect-daily-temperature-range
September 11, 2001 Airline Groundings: Contrails Affect Daily ...
During the 11-14 September 2001 grounding period natural clouds and contrails were noticeably absent on high-resolution satellite imagery across the regions that typically receive abundant contrail coverage. A previous analysis of temperature data for the grounding period reported an anomalous increase in the U.S.-averaged, 3-day DTR value.

Is the 12,000-year cycle more likely to be asteroids or vulcanism?

Proving the point that even asteroids are a more concerning existential threat than the outdoor thermostat going up a couple degrees?

Seems to me Gretta should be pulling her hair out that we've not sufficiently guarded ourselves against that inevitable event. "How dare us".

12,000-year cycle
 

1) I don't have anything with me for a 12,000-year cycle.
2) The asteroids large enough to be detected are continuously monitored around the clock.
3) 'Vulcanism' or 'Volcanism?' I don't know anything about 'vulcanism'.
4) Volcanism is not periodic in nature. There are no 'cycles' associated with it that I've experienced in the literature. It is associated with tidal forces, plate tectonics, lithospheric isostatic rebound as ice sheets melt, and seismic activity.
5) The Milankovich 'wobble' has a periodicity of 23,000-years.
6) The 'tilt' cycle is 41,000-years.
7) The 'ellipticity' cycle is 96,000-years.
8) The solar sunspot cycle is eleven years, with a delta-irradiance of 0.50%.

sufficiently guarded
 

NASA'a doing what they can, to monitor asteroids. Next year, one will pass between the Moon and Earth.
Global warming's a sure thing. It's accelerating, non-linearly, as I type.
It will ultimately be the 6th mass extinction. It's what the people who control information want, and they're going to get it. A great success story!

You say po-tah-to, I say to-ma-to? :)

DDG says:

what would yellowstones eruption do to the planet? at least we can stop an astroid. cant stop yellowstone...

Dansgaard..................
 

I'm not as organized as I'd like.
Willi Dansgaard of Denmark is the namesake for the 'Dansgaard' half of the adjective.
'Heinrich' refers to 'so-called' Heinrich ice-rafting and iceberg discharge events ( boulders and everything to make glacier moraines ), transported for vast distances; associated with Ice Age terminations and Younger Dryas, which introduced freshwater pulses to the oceans surface water, affecting cessation of deepwater convection and circulation because of thermohaline/ density issues.
At 12,000-years ago there was a 'Allerod warming' where a vigorous deep convection returned.

Yellowstone super-volcano
 

All I remember was that, all, as far as Texas, would be killed.
Same for all living around the caldera at Carson City, Nevada.

well yeah but how would it affect the planets overall air quality or temperature?

When the next vei 7 pops we won't have the luxury of worrying about the man made global warming fantasy.

air quality and temp
 

1) would depend on where one were at the time.
2) everyone within a thousand miles would be dead.
3) Skies could be darkened for two years,
4) Mount Tambora's 1815 eruption cooled the whole planet 2-F.
5) all depends on magnitude of eruption.

Who is the 'we' that could stop an asteroid? We can track Sun-orbiting objects, but interstellar objects come out of the North or South and they can potentially exceed orbital velocities.

But, you asked:

Yellowstone Supervolcano Simulation

edit: Some general volcanic disater porn -- What If Yellowstone Blows Up In 2022?

It turns out volcanoes are good for you. Except the Long Valley Caldera? :eek:

'we'
 

Presently, NASA's plan is send a spacecraft out to any Earth-intercept asteroid and give it enough of a nudged force vector, to deflect its trajectory away from us.
NASA's already successfully landed spacecraft on asteroids. A small, impulse rocket motor, operating over a long-enough duration, could do the job.
Not 'sexy', but it'd get it done.

I know a recent European probe to an asteroid didn't go so well.

Bennu? That was more of a boop than a landing.

'Sexy' is when you park it in a Lunar orbit and proceed to strip-mine it.

park it
 

That might cost the entire global GNP. You'd want to know that it was worth it, ahead of time.

news.slashdot.org/story/22/05/23/1626245/pakistan-hits-120f-as-climate-trends-drive-spring-heatwave
One comment points out that the record high was set back in 2017. Another suggest people will do better than crops.

This is insightful to Slashdot's current state:

Answer (Score:5, Interesting) by Okian Warrior ( 537106 )
I still think their moderation system is the best, if not immune to bots.

I plan to maximize flourishing during changing climate, because I'm maximally equipped to respond to events in my life, and everything else I have minimal control over.

Authoritarians are out of control and need outside influence to regulate their environment (outdoor thermostat for example) and Liberals leverage control over the things they can, leaving as little to chance as possible.

8 has been retraced in nature magazine. It's debunked junk science.

What's new in human understanding is the immediate conduit from the Heliosphere to Earth's surface via waves that propagate [from/to?] the Equator.

The comments on Slashdot support you.

Then there's all that too.
I like how global warming belivers can think that protons from a solar flare can hit the poles at 90%+ the speed of light and simply nothing happens.

There're cycles within cycles. More than we knew:

www.esa.int/Applications/Observing_the_Earth/FutureEO/Swarm/Swarm_unveils_magnetic_waves_deep_down

My hypothesis is that to understand completely the most simple thing in the universe would require complete understanding of all things in the universe.

Everything is the result of prior first causes.

To get the right answers you need to start with the right questions.

I find grounding in Arthur M. Young's Reflexive Universe, and Fuller's Synergetics. Young is summarized here:

arthuryoung.com/books/the-reflexive-universe/

https://arthuryoung.com/wp-content/u...c-1024x408.jpg

Light gives up degrees of freedom, until you get rocks, then a miracle happens and degrees of freedom are regained. Each level has seven sublevels, we're at a sub-seven level.

Also a teaser for his next book on Formal Expression for Control: Position and its Three Derivatives

The Faber college motto was 'Knowledge is good."
Buddy James: Geometry of the Electric Universe | Thunderbolts
If a rabbit hole goes over your head, that can't be a good thing, right?

what's new
 

1) We're 'within' the heliosphere, so, when you say 'propagating from', where specifically are you talking about?
2) 'Waves' is too ambiguous. The Sun generates the entire electromagnetic spectrum, which can be represented either as photons or waves. Only a very small percentage of the overall energy can penetrate Earth's atmosphere. So we need specificity.
3) Any travel time is limited to the speed of light, so anything 'immediate' is automatically ruled out as a violation of physics. Nothing on Earth can be experienced any sooner than eight minutes from the time something occurs on the Sun.
4) Is what you're talking about limited to the Equator? And you understand that the position of the equator, with respect to the Sun, changes every day?

protons.........happens
 

Perhaps you want to recalculate your velocity for protons. I believe you'll find that you're off by some orders of magnitude.
All who routinely observe the sky are acquainted with aurorae, a classic phenomena associated with plasma bombardment of the magnetosphere.
One example of something happening, which nullifies your argument.

European Space Agency
 

How would they know anything?

"to Earth's surface"
I had other plans for today.
condescension
condescension

I'll have to get back to you on this one.

to the Earth's surface
 

1) The heliosphere reaches out 9,300,000,000-miles from the Sun's surface. From where, to Earth's surface are we talking? I'm just trying to narrow the field. It's that inverse-square law thing.

How does your comment move the discussion forward.
Heliosphere, Ionosphere, Thermosphere, Mesosphere. Stratosphere, Lithosphere, Mantle.

Meditate on this:

https://nasaviz.gsfc.nasa.gov/vis/a0..._Processes.jpg
https://nasaviz.gsfc.nasa.gov/4641

NASA have moved beyond your Crystal Spheres weltanschauung. I highly recommend the video at #25. It starts with Plato. And gets you to co-axial filaments without any cable.

comment... heliosphere... meditate
 

1) The question is quite straightforward. There's a reason why you're using ESA data. I'd like to know why you use it.
2) The question about the heliosphere is also quite straightforward. Are you ever going to give me a simple answer?
3) Of all the 'spheres' you mention, the troposphere has been omitted. It's the only 'sphere' which is germane to the topic of global cooling. Why do you intentionally deflect the conversation away from the only thing associated with the subject.
4) And add to it, as if we haven't moved away from the subject far enough already.
5) If you want to discuss failed philosophers you could start your own dedicated thread.

It's their satellite constellation?
At least, according to DuckDuckGo and therefore Bing, therefore Microsoft.
_____________

Why do you number your paragraphs?

I kept adding to the list when I found out what ITM stood for. I didn't realize the troposphere is the only one that counts.
____________

Please describe Birkeland currents and Alfvén waves in your own words.

I was talking about solar flates. The solar protons start to hit the poles hit with in seconds or minutes of observing a solar flare pop off then last up to a few hours. If you don't know that why are you even commenting on this subject at all.
The only thing null is man made global warming.

satellite trio
 

1) Okay, ESA has a trio of earth observing satellites. Their instrument suites don't contain any facility for monitoring the troposphere. The troposphere is where 'climate' is. You've known this for years now. Space weather has nothing to do with global climate change. I can't comprehend why space weather is your go-to for nearly any topic which comes up.
2) I number my paragraphs because you requested that I do it many months ago. So we could segregate thoughts, item by item.
3) I don't know what ITM stands for.
4) Birkeland currents aren't on the table for discussion at this thread.
5) Alfven waves I brought up a year or so ago when you couldn't remember them. Why don't you read my replies when I give them. Are you just into total disrespect? A pen, paper, ring binder, and top-loading sheet protectors would allow you to assemble work books assigned to specific topics. That's what I do.
6) If you want to demonstrate space weather prowess, start a dedicated thread. I promise that I won't disturb you there. I don't do space weather anymore. If you've read my comments over the past year, you know why.
Apology, I forgot about 'Cosmic Catastrophe' from 2019.
Glad the world ended back then. I was afraid it would happen. My revenant life is much better.

seconds or minutes
 

A) The speed of light 'c', is 186,000-miles per second.
B) Earth is an average 92,960,000-miles from the Sun.
C) 92,960,000 / 186,000 = 499.784-seconds transit time between Sun and Earth.
D) 499.7840seconds / 60-seconds/minute = 8.329-minutes transit time for light, between Sun and Earth
E) I quit bringing my space weather workbook with me, so I'm at a loss to tell what the velocity of the solar wind is. It is 'ORDERS OF MAGNITUDE' slower than the speed of light.
F) I'm commenting for the benefit of our guests, as you're obviously struggling to keep your quanta in order. Someone's got to do it.
G) I won't dignify your last comment with a response.

Should I be using the term Space Climate?

Oh, Okay. The line numbering is defeated by the line wrap so I didn't recognize what you're doing. I'm actually flattered. My apology.

Your thread [shrug]

I didn't know there'd be a quiz. Put the explication of Terrestrial Atmospheric ITM Processes in your binder.

You are welcome in my thread.

term
 

Please don't say anything about space climate.
Please don't say anything about space weather.
If you want to contribute, limit your remarks to global cooling.
This may be my thread, however, I have no recollection of ever using 'ITM' in any posting.
So you don't read what I post. I've explained why I left 'Cosmic Catastrophe.'
I think I'll just abandon this thread. There's no future in it.

It's all cool. :)

ITM defined at Permalink #32.