Cold And Ice, Not Heat, Episodically Gripped Tropical Regions 300 Million Years Ago

ScienceDaily ^ | Aug. 1, 2008 | NSF study - Geologist Gerilyn Soreghan of Oklahoma University

[Ernest_at_the_Beach]

Geoscientists have long presumed that, like today, the tropics remained warm throughout Earth's last major glaciation 300 million years ago. New evidence, however, indicates that cold temperatures in fact episodically gripped these equatorial latitudes at that time.

Geologist Gerilyn Soreghan of Oklahoma University found evidence for this conclusion in the preservation of an ancient glacial landscape in the Rocky Mountains of western Colorado. Three hundred million years ago, the region was part of the tropics. The continents then were assembled into the supercontinent Pangaea.

Soreghan and colleagues published their results in the August 2008, issue of the journal Geology.

Climate model simulations are unable to replicate such cold tropical conditions for this time period, said Soreghan. "We are left with the prospect that what has been termed our 'best-known' analogue to Earth's modern glaciation is in fact poorly known."

"This study is an example of the wealth of untapped climate information stored in Earth's 'deep time' geologic record millions of years ago," said H. Richard Lane, program director in NSF's Division of Earth Sciences, which funded the research. "These kinds of discoveries may greatly improve our understanding and prediction of modern climate change."

[Ernest_at_the_Beach]

fyi

[Jack Hydrazine]

And it if wasn’t for AGW it would have stayed that way! /s

[Ernest_at_the_Beach]

Related threads:

The big picture: 65 million years of temperature swings

And:

Is this the Future:?

'Snowball Earth': Glaciers, ice packs once met at Equator

****************************EXCERPT Intro************************

American boffins say they have discovered evidence that almost the entire world was covered in sea ice and glaciers at certain points in the remote past, during so-called "snowball Earth" periods where the polar ice sheets met at the Equator.

It were grim in the old days.

******************************************************

Source is a UK publication...boffins ...are Scientists....

[Ernest_at_the_Beach]

From the source article:

Unaweep Canyon in the Rocky Mountains is the site of a deep gorge that reveals ancient landscapes and sediments. The inset image is of a "dropstone" from an eons-old glacier. (Credit: Gerilyn Soreghan, courtesy NSF)

[Dr. Bogus Pachysandra]

Saw this somewhere yesterday. But I thought the rocks studied were in Alaska. Hmmm,,,

[Ernest_at_the_Beach]

Unaweep Canyon is a geologically distinct canyon that cuts across the Uncompahgre Plateau in western Colorado.

*************************************EXCERPT****************************************

One interpretation holds that in ancient times, the Dolores River flowed through Unaweep Canyon and into the Gunnison River south of present day Grand Junction, Colorado. A second interpretation is that the Gunnison River itself once flowed through the canyon (Kaplan 2005). In either case as the uplift of the Uncompahgre Plateau between 5 and 15 million years ago resulted in the course change of the river involved and left the canyon without a river. A third, controversial hypothesis holds that the steep sides of the canyon in places indicates the valley was glaciated during the Late Paleozoic (Soreghan, G.S. 2004) or Pleistocene. However, seismic studies indicate that the flat valley floor is a V-shaped valley that was filled by tallus and alluvial fill (Oesleby 2005).

[Ernest_at_the_Beach]

I am familiar with some of that area,...but don't recall or it didn't register with me ....

Had an Aunt that lived near Grand Junction and below Grand Mesa.

[BIGLOOK]

This explains the chill on the historical heat wave we're experiencing now.

We've adapted to handle cooling by storing fat which is distributed through our bodies to keep core temperature optimal. Global Warming zealots suffer from a malady that limits fat distribution to their cranium.

This is the physiological origin of the idiom 'Your hair's on fire!'.

[Ernest_at_the_Beach]

LOL....OK!

[Star Traveler]

Geologist Gerilyn Soreghan of Oklahoma University found evidence for this conclusion in the preservation of an ancient glacial landscape in the Rocky Mountains of western Colorado. Three hundred million years ago, the region was part of the tropics. The continents then were assembled into the supercontinent Pangaea.

One of these days, more scientists will go back to the universal, world-wide flood of the Bible. The Bible does indicate that the land was all one land and not differing continents. I believe that the ice age happened after the worldwide flood, because of the drastic geophysical changes that occured during that catastrophic event.

But, regardless of that, it's plain to see that our Global Warming and Global Cooling that we've seen in recent centuries and millennia is not anything related to "Anthropogenic Global Warming" but from things that have happened in nature, apart from mankind.

No, this is not a creationist thread, it's about "Anthropogenic Global Warming"... but that paragraph jumped out at me... :-)

[Star Traveler]

Global Temperature Trends From 2500 B.C. To 2040 A.D.

Until recently, global temperatures were more than a degree Fahrenheit warmer when compared to the overall 20th Century mean. From August of 2007 through February of 2008, the Earth’s mean reading dropped to near the 200-year average temperature of 57 degrees. Since that time, the mean reading has been fluctuating.

We, Cliff Harris and Randy Mann, believe that the warming and even the cooling of global temperatures are the result of long-term climatic cycles, solar activity, sea-surface temperature patterns and more. However, Mankind’s activities of the burning of fossil fuels, massive deforestations, the replacing of grassy surfaces with asphalt and concrete, the ‘Urban Heat Island Effect,’ are making conditions ‘worse’ and this will ultimately enhance the Earth’s warming process down the meteorological roadway in the next several decades.

From the late 1940s through the early 1970s, a climate research organization called the Weather Science Foundation of Crystal Lake, Illinois, determined that the planet’s warm, cold, wet and dry periods were the result of alternating short-term and long-term climatic cycles. These researchers and scientists also concluded that the Earth’s ever-changing climate likewise has influenced global and regional economies, human and animal migrations, science, religion and the arts as well as shifting forms of government and strength of leadership.

Much of this data was based upon thousands of hours of research done by Dr. Raymond H. Wheeler and his associates during the 1930s and 1940s at the University of Kansas. Dr. Wheeler was well-known for his discovery of various climate cycles, including his highly-regarded ‘510-Year Drought Clock’ that he detailed at the end of the ‘Dust Bowl’ era in the late 1930s.

During the early 1970s, our planet was in the midst of a colder and drier weather cycle. Inflationary recessions and oil shortages led to rationing and long gas lines at service stations worldwide. The situation at that time was far worse than it is now, at least for the time being.

The Weather Science Foundation also predicted, based on these various climate cycles, that our planet would turn much warmer and wetter by the early 2000s, resulting in general global prosperity. They also said that we would be seeing at this time widespread weather ‘extremes.’ There’s little doubt that most of their early predictions came true.

Our recent decline in the Earth’s temperature may be a combination of both long-term and short-term climate cycles, decreased solar activity and the development of a strong long-lasting La Nina, the current cooler than normal sea-surface temperature event in the south-central Pacific Ocean. Sunspot activity in the past 18 months has decreased to the lowest levels since ‘The Little Ice Age’ ended in the mid-to late 1800s. This "cool spell," though, may only be a brief interruption to the Earth’s overall warming trend. Only time will tell.

Based on these predictions, it appears that much warmer readings may be expected for Planet Earth, especially by the 2030s, that will eventually top 1998's global highest reading of 58.3 degrees. It’s quite possible we could see an average temperature in the low 60s. Until then, this ‘cooling period’ may last from just a few months to as long as several years, especially if sunspot activity remains very low.

We at Harris-Mann Climatology, www.LongRangeWeather.com, believe that our prolonged cycle of wide weather ‘extremes,’ the worst in at least 1,000 years, will continue and perhaps become even more severe, especially by the mid 2010s. We should see more powerful storms, including major hurricanes and increasing deadly tornadoes. There will likewise be widespread flooding, crop-destroying droughts and freezes and violent weather of all types including ice storms, large-sized hail and torrential downpours.

We are already seeing on virtually every continent an almost Biblical weather scenario of increasing droughts and floods. In both the southwestern and southeastern corners of the U.S, there are severe water shortage problems associated with chronic long-term dryness. In some cases, the water deficits are the worst in at least 400 years.

Dr. Wheeler also discovered that approximately every 102 years, a much warmer and drier climatic cycle affects our planet. The last such ‘warm and dry’ peak occurred in 1936, at the end of the infamous ‘Dust Bowl’ period. During that time, extreme heat and dryness, combined with a multitude of problems during the ‘Great Depression,’ made living conditions practically intolerable.

The next ‘warm and dry’ climatic phase is scheduled to arrive in the early 2030s, probably peaking around 2038. It is expected to produce even hotter and drier weather patterns than we saw during the late 1990s and early 2000s.

But, we should remember, that the Earth’s coldest periods have usually followed excessive warmth. Such was the case when our planet moved from the Medieval Warm Period between 900 and 1300 A.D. to the sudden ‘Little Ice Age,’ which peaked in the 17th Century.

By the end of this 21st Century, a big cool down may occur that could ultimately lead to expanding glaciers worldwide, even in the mid-latitudes. We could possibly see even a new Great Ice Age. Based on long-term climatic data, these major ice ages have recurred about every 11,500 years. Well, you guessed it. The last extensive ice age was approximately 11,500 years ago, so we may be due. Again, only time will tell.

[Star Traveler]

It’s one thing to gripe and complain about these things and disagree with it, but it’s quite another to convince your friends and neighbors and relatives and coworkers...

THEREFORE..., it’s also absolutely necessary for people to know the information in the following documentary. If there were simply one video that you could see and/or show people you know... this would be the one...

---

The following is an excellent video documentary on the so-called “Global Warming” I would recommend it to all FReepers. It’s a very well-made documentary.

“The Great Global Warming Swindle”

If you want to download it, via a BitTorrent site (using a BitTorrent client), you can get it at the following link. Information about BitTorrent protocol and BitTorrent clients and their comparison at these three links (in this sentence). Some additional BitTorrent information here and here.

Download it here...
http://thepiratebay.org/torrent/3635222/The_Great_Global_Warming_Swindle
[This is a high-quality copy, of about a gigabyte in size. This link is the information about it, and you have to click the download link to get it on your BitTorrent client software. You'll also find users' comments here, too.]

It’s worth seeing and having for relatives, friends, neighbors and coworkers to see.

Also, see it online here...
http://www.moviesfoundonline.com/great_global_warming_swindle.php
[this one is considerably lower quality, is a flash video and viewable online, of course..., and also, you can download flash video on a website either yourself or some software doing it.]

Buy it on DVD here...
[this would be the very highest quality version, on a DVD disk, of several gigabytes in size...] At Amazon, it seems to be high-priced now and have only a few copies right now.
http://www.amazon.com/dp/B000WLUXZE

At WAGtv (a UK shop), but don't know about shipping. The price is reasonable, though.
https://www.wagtv.com/product/The-Great-Global-Warming-Swindle-322.html
[And..., some information from WAGtv about this item.]

---

Also, in split parts on YouTube...

The Great Global Warming Swindle (Part 1 of 9)
http://www.youtube.com/watch?v=6TqqWJugXzs

The Great Global Warming Swindle (Part 2 of 9)
http://www.youtube.com/watch?v=L5rGpDMN8lw

The Great Global Warming Swindle (Part 3 of 9)
http://www.youtube.com/watch?v=GzFL6Ixe_bo

The Great Global Warming Swindle (Part 4 of 9)
http://www.youtube.com/watch?v=mNQy2rT_dvU

The Great Global Warming Swindle (Part 5 of 9)
http://www.youtube.com/watch?v=5dzIMXGI6k8

The Great Global Warming Swindle (Part 6 of 9)
http://www.youtube.com/watch?v=6GjOgQN1Jco

The Great Global Warming Swindle (Part 7 of 9)
http://www.youtube.com/watch?v=VHI2GfbfrYw

The Great Global Warming Swindle (Part 8 of 9)
http://www.youtube.com/watch?v=7N9benJh3Lw

The Great Global Warming Swindle - Credits (Part 9 of 9)
http://www.youtube.com/watch?v=S_1ifP-ri58

[Ernest_at_the_Beach]

fyi

[steelyourfaith]

Thanx !

 

Beam me to Planet Gore !

[IYAS9YAS]

Moving glaciers and icebergs could explain coconut migration.

[Ernest_at_the_Beach]

Just posted this...:

Geologists Look for Answers in Antarctica: Did Ice Exist at Equator Some 300 Million Years Ago?

[Ernest_at_the_Beach]

Coconuts and Glaciers together doesn't seem right.

[Ernest_at_the_Beach]

AGW is such a scam!

[SunkenCiv]

similar topics:

• 'Snowball Earth': Glaciers, ice packs once met at Equator
• Ice Once Covered the Equator
• Geologists Look for Answers in Antarctica: Did Ice Exist at Equator Some 300 Million Years Ago?

sidebars:

• New Study Says Global Warming May Be Signal of Impending Ice Age
• The big picture: 65 million years of temperature swings
• Were short warm periods typical for transitions between interglacial and glacial epochs?
• Lessons From an Interglacial Past
• How Well Do Scientists Understand How Changes in Earth's Orbit Affect Natural Climate Trends?

Thanks Ernest_at_the_Beach.

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