As Mammoths Died Out, Earth Chilled (mammoth burp and fart levels dropped, contributing to cooling)

news.discovery.com ^ | May 23, 2010 | Marlowe Hood

[Free ThinkerNY]

The rapid decline of mammoths and other megafauna after humans spread across the New World may explain a bone-chilling plunge in global temperatures some 12,800 years ago, researchers reported Sunday.

The 100-odd species of grass-eating giants that once crowded the North American landscape released huge quantities of methane -- from both ends of their digestive tracks.

As a heat-trapping greenhouse gas, methane is 30 times more potent than carbon dioxide (CO2).

It was not enough to trigger runaway global warming. But when all that gaseous output suddenly tapered off, it caused or at least contributed to a prolonged freeze known as the Younger Dryas cold event, they argue.

If so, the "Anthropocene epoch" -- the era of major human impacts on Earth's climate system -- began not with the industrial revolution in the 1800s, but the large-scale influx of two-legged predators to the Americas more than 13,000 years earlier.

Calculations by a trio of researchers led by Felisa Smith of the University of New Mexico, published in Nature, show how all the pieces of this previously unsolved puzzle might fit together.

Extrapolating from data on cows and other modern-day ruminants, the scientists estimated the total methane output of pre-historic megafauna at nearly 10 trillion grams per year.

[rdl6989]

Ping.

[Mikey_1962]

mammoth burp and fart levels dropped, contributing to cooling

If this were true then Thanksgiving Dinner would be a sweat lodge in my family.

[BookaT]

Whatever!

“it caused or at least contributed”

sound familiar?

“saved or created”

I am no scientist but I would imagine the planet would have had to have been “Nut to butt” and 25 deep of these animals to have “at least contributed”

It would have to be a mountain of mammoths that you could see from space.

This wacky sh14 just makes me bananas. Like WOW 10 trillion grams! OMG! you mean 10 billion kilograms? what is that in terms of total atmosphere? I am guessing in order to make an impact it would have to have some scientific notation attached to it.

Sorry just venting. Like I started with, Whatever!

[CarryaBigStick]

Our science community has lost it’s collective mind...

[Snickering Hound]

http://en.wikipedia.org/wiki/Lake_Agassiz

The sudden draining of Lake Agassiz at the end of the last glaciation is much, much more likely.

[Moltke]

Extrapolating from data....

There's the major source for junk science. But these climate 'scientists' just don't get it...or don't want to. So they just keep on doing it and develop 'models' that fit the extrapolation...*sigh*

[SunkenCiv]

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[SunkenCiv]

---

The Cycle of Cosmic Catastrophes: Flood, Fire, and Famine in the History of Civilization by Richard Firestone, Allen West, and Simon Warwick-Smith

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[SunkenCiv]

• What killed the mammoths and other behemoths?
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• Supernova debris found on Earth
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• Supernova Storm Wiped Out Mammoths?
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• Scientist: Comets Blasted Early Americans
• Native Americans Recorded Supernova Explosion
• Terrestrial Evidence of a Nuclear Catastrophe in Paleoindian Times
• Did comet start deadly cold snap?
• Diamonds tell tale of comet that killed off the cavemen
• Catastrophic Comet Chilled and Killed Ice Age Beasts (and Clovis people)
• Oregon Researchers Involved In New Clovis-Age Impact Theory (More)
• Comet May Have Doomed Mammoths
• Ice Age Ends Smashingly: Did A Comet Blow Up Over Eastern Canada? (More) (Carolina Bays)
• Climate alarmists lose another piece of evidence
• Comet Theory Collides With Clovis Research, May Explain Disappearance of Ancient People
• NSF Press Release: Comet May Have Exploded Over North America 13,000 Years Ago
• Research Team Says Extraterrestrial Impact To Blame For Ice Age Extinctions (More)
• Cosmic blast may have killed off megafauna: Scientists say early humans doomed, too
• Cosmic blast may have killed off megafauna: Scientists say early humans doomed, too
• Evidence for an extraterrestrial impact 12,900 years ago
• Site Provides Evidence For Ancient Comet Explosion (Topper - SC)
• The End of Eden: The Comet That Changed Civilization
• Great beasts peppered from space
• Did Comets Cause Ancient American Extinctions?
• Al Goodyear And The Secrets Of Ancient Americans
• The mysterious forest rings of northern Ontario
• Life Survived Catastrophic Space Rock Impact [Chesapeake Bay area]
• Research Casts New Light On History Of North America
• Exploding Asteroid Theory Strengthened By New Evidence Located In Ohio, Indiana
• First Humans To Settle Americas Came From Europe, Not From Asia....
• Diamonds Rained Down During Ice Age
• Diamonds Rained Down During Ice Age ($$$)
• First Humans To Settle Americas Came From Europe, Not From Asia Over Bering Strait -
• Tracking down abrupt climate changes (Rapid natural climate change 12,700 years ago)
• Mammoth Mystery: The Beasts' Final Years
• Scientists find signs of 13,000-year-old extinction event
• Scientists say comet killed off mammoths, saber-toothed tigers
• Diamonds Linked to Quick Cooling Eons Ago
• Six North American sites hold 12,900-year-old nanodiamond-rich soil
• Did a Comet Hit Earth 12,000 Years Ago?
• Mammoths wiped out by 'perfect storm?'
• Laser mapping may help solve the mystery of the Mima Mounds
• Humans to Blame for Extinction? - Not Necessarily So ...
• Did a Comet Cause a North American Die-Off around 13,000 Years Ago?
• Carolina bays gouged into the ground at a magnetic reversal
• North America comet theory questioned
• Mini ice age took hold of Europe in months
• Car-Sized Creature Whacked with Tail's Sweet Spot (until 10,000 years ago)
• Starvation 'wiped out' giant deer
• Prehistoric man, giant animal coexisted
• Extinction of Giant Mammals Changed Landscape Dramatically
• Sophisticated hunters not to blame for driving mammoths to extinction
• Big freeze plunged Europe into ice age in months
• Kansas scientists probe mysterious possible comet strikes on Earth
• Explosive Nearby Star Could Threaten Earth
• T Pyxidis Soon To Be A Type Ia Supernova
• The Death Star (Supernova close to Earth - could wipe us out)
• Cave reveals Southwest's abrupt climate swings during Ice Age
• Musk Ox Population Decline Due to Climate, Not Humans, Study Finds
• Hour-long hailstorm may have caused 1,000-year freeze, say scientists
• Comet trail may have caused last ice age - UPI.com
• New Study Reveals Link Between 'Climate Footprints' and Mass Mammal Extinction

[2 Kool 2 Be 4-Gotten]

Mammoth farts - were they truly mammoth? The mind boggles. As the earth turns, the woolly mammoths break wind and burp up their lunch. And the earth cools. Or warms. Or whatever.

[Cruising Speed]

What utter crap. The dead plants make methane whether they are digested in a stomach or rot on the ground. Just because the plant passes through a stomach before going into the soil changes nothing.

[centurion316]

I love America! What a country. Where else on God’s Green Earth could a certified moron get a PhD? Only in America.

[mike-zed]

Libs are utterly clinical.

[steelyourfaith]

Thanx !

 

Beam me to Planet Gore !

[Our man in washington]

So ten trillion grams would equal ten billion kilograms. By contrast, the total human emission of carbon dioxide (including emissions caused by changes in land use) is about 29 billion kilograms. But wait—methane is 30 times more potent than carbon dioxide. Thus those ten billion kilograms would have been the equivalent of releasing 300 billion kilograms of carbon dioxide. And yet, the earth didn’t heat up by ten degrees back then.

Just noticing.

[HerrBlucher]

More likely, as the earth chilled mammoths died out. That is the simplest and most reasonable theory. It seems now that all science is political, what garbage.

[Psalm 144]

A number of sites have been found where a herd of mammoth were driven over cliffs, and then flensed and eaten by humans. The paleo-archaeologists speculate that the herds were driven by hunters using torches to crowd and panic the herd.

This form of hunting, a bit like using dynamite for fishing, is a more likely cause for their decline and extinction.

[Psalm 144]

uhh. Missed the absurd point of the article. Time to sleep.

[Steve Van Doorn]

What do you think which was worse? Science today or when the church was the only science?