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  #1  
Old 05-07-2012, 10:13 PM
Yawn...'s Avatar
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Dinosaur Farts Caused Global Warming

BWHAHAHAHAHAH - I love the BBC. They have the best stuff.

For all you paranoids out there, finally there is proof positive climate change is real....
Giant dinosaurs could have warmed the planet with their flatulence, say researchers.
British scientists have calculated the methane output of sauropods, including the species known as Brontosaurus.
By scaling up the digestive wind of cows, they estimate that the population of dinosaurs - as a whole - produced 520 million tonnes of gas annually.
They suggest the gas could have been a key factor in the warm climate 150 million years ago.http://www.bbc.co.uk/nature/17953792

Yet more proof !!!!!



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  #2  
Old 05-07-2012, 10:17 PM
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mumbles mumbles is offline
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Re: Dinosaur Farts Caused Global Warming

as i remember the facts, dinosaurs grew many and large because the warm climate was good for plant growth, that is food was everywhere. dinosaurs dies off when planet cooled, possibly due to asteroid strike clouding the atmosphere.

once again, sounds like some fool is claiming the result was the cause.



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  #3  
Old 05-07-2012, 10:29 PM
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Re: Dinosaur Farts Caused Global Warming

Quote:
Originally Posted by mumbles View Post
as i remember the facts, dinosaurs grew many and large because the warm climate was good for plant growth, that is food was everywhere. dinosaurs dies off when planet cooled, possibly due to asteroid strike clouding the atmosphere.

once again, sounds like some fool is claiming the result was the cause.
Yup, I think you nailed it Mumbles.

Earth must have been a sticky place.

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  #4  
Old 05-07-2012, 10:34 PM
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Re: Dinosaur Farts Caused Global Warming

Fox News expert on global warming, who other than Larry the Cable Guy - Seriously !

Holy Cow, Larry is a riot.





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  #5  
Old 05-08-2012, 07:27 AM
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Spector567 Spector567 is offline
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Re: Dinosaur Farts Caused Global Warming

Quote:
Originally Posted by mumbles View Post
as i remember the facts, dinosaurs grew many and large because the warm climate was good for plant growth, that is food was everywhere. dinosaurs dies off when planet cooled, possibly due to asteroid strike clouding the atmosphere.

once again, sounds like some fool is claiming the result was the cause.
For once mumbles is right....... The fools being Fox news and the people who watch it.


What the actual paper says.

No, dinosaurs did not fart themselves to death. This is what happens when you get your information from Fox News.
Dinosaurs may have farted themselves to extinction, according to a new study from British scientists.
The researchers calculated that the prehistoric beasts pumped out more than 520 million tons (472 million tonnes) of methane a year — enough to warm the planet and hasten their own eventual demise.
Until now, an asteroid strike and volcanic activity around 65 million years ago had seemed the most likely cause of their extinction.
So I read the paper. The researchers didn’t say that at all. There is nothing about extinction in the paper; it would have been ridiculous and I was prepared to dismiss such a claim without even reading the paper (the Jurassic lasted 55 million years, the Cretaceous 80 million, with dinosaurs farting away throughout). But the paper makes no such claim, instead suggesting that the mass of herbivores during the Mesozoic would have made a substantial, but stable, contribution of greenhouse gases to the atmosphere that may have been partially responsible for the warmer, moister climate of the era and the greater primary production.
Take together, our calculations suggest that sauropod dinosaurs could potentially have played a significant role in influencing climate through their methane emissions. Even if our 520 Tg estimate is overstated by a factor of 2, it suggests that global methane emission from Mesozoic sauropods alone was capable of sustaining an atmospheric methane mixing ratio of 1 to 2 ppm. Equally, our estimate may be understated by a similar factor, (i.e. possibly supporting 4 ppm methane). In the warm wet Mesozoic world, wetlands, forest fires, and leaking gasfields may have added around another 4 ppm methane to the air. Thus, a Mesozoic methane mixing ratio of 6–8 ppm seems very plausible.
The Mesozoic trend to sauropod gigantism led to the evolution of immense microbial vats unequalled in modern land animals. Methane was probably important in Mesozoic greenhouse warming. Our simple proof-of-concept model suggests greenhouse warming by sauropod megaherbivores could have been significant in sustaining warm climates. Although dinosaurs are unique in the large body sizes they achieved, there may have been other occasions in the past where animal-produced methane contributed substantially to global environmental gas composition: for example, it has been speculated that the extinction of megafauna coincident with human colonisation of the Americas may be related to a reduction of atmospheric methane levels.
See? A reasonable conclusion, not Fox News sensationalism.
But here’s the information you really wanted to know: they estimate that a medium-sized sauropod would have farted out 2675 liters of gas a day. Happy now? Impressed?

Wilkinson DM, Nisbet EG, Ruxton GD (2012) Could methane produced by sauropod dinosaurs have helped drive Mesozoic climate warmth? Current Biology 22(9):292-293.
http://freethoughtblogs.com/pharyngu...y-exaggerated/





Also FYI. No-one said that a warmer earth was a absolutly terrible thing. the problem is that it's happening 10+ times faster than any other change. Well except for that killer asteroid.... You know the one that killed all the dinosaurs.



(Also for those who are interested. Co2 Levels 65 million years ago were still lower than they are today.)

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  #6  
Old 05-08-2012, 02:15 PM
naturefreak2101 naturefreak2101 is offline
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Re: Dinosaur Farts Caused Global Warming

What I get out of it is that dinosaurs, which had populated most landmasses on Earth at the time, may have had an impact on the climate.

Doesn't that mean that humans, whose populations are denser than dinosaurs, may have an impact on climate as well?

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  #7  
Old 05-08-2012, 05:47 PM
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Re: Dinosaur Farts Caused Global Warming

Quote:
Originally Posted by thistle View Post
I think you misunderstood what Mumbles said, and Yawn agreed with.
Well, if Rush says it doesn't pass the smell test - Enough said !

The average person farts 30 times a day, about 10% of a fart is methane 75cc of methane per day the rest is CO2.

Over a year this is equivalent to 630 litres of CO2 or 1.247kg.
Or about 8.727 million tons of CO2

Density of CO2 = 1.98kg/m˛
Mass of CO2 (equivalence) farted per person per year = 1.247kg

Human greenhouse gases have causes 0.8°C of warming

Farts will account for about 0.000159°C of this

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  #8  
Old 05-08-2012, 06:49 PM
willyjoe willyjoe is offline
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Re: Dinosaur Farts Caused Global Warming

Quote:
Originally Posted by naturefreak2101 View Post
What I get out of it is that dinosaurs, which had populated most landmasses on Earth at the time, may have had an impact on the climate.

Doesn't that mean that humans, whose populations are denser than dinosaurs, may have an impact on climate as well?
Unfortunately dinosaurs did not have well heeled lobby efforts and "news" media outlets with which to convince uneducated idiologues that science was like a religion and could merely be written off as "the enemy".
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  #9  
Old 05-08-2012, 06:50 PM
willyjoe willyjoe is offline
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Re: Dinosaur Farts Caused Global Warming

Quote:
Originally Posted by naturefreak2101 View Post
That you put pwrone and common sense in the same sentence is really hilarious.

This has nothing to do with moving right or left. It has to do with the media being uncommonly ignorant.
I think all he meant was that he and pwhine are housed on the same ward.
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