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Mega Volcanoes Caused Mass Extinction?

mega volcanoes mass extinction end-triassic extinction

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#1    Waspie_Dwarf

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Posted 22 March 2013 - 02:42 PM

Mega Volcanoes May Have Caused Mass Extinction


news.discovery.com said:

Massive volcanic eruptions may have led to the extermination of half of Earth's species some 200 million years ago, a new study suggests.

The release of gases from giant eruptions caused climate change that led to the End-Triassic Extinction, the widespread loss of land and sea species that made way for the rise of the dinosaurs, the research says. The new study, published today (March 21) in the journal Science, shows that a set of major eruptions spanning from what is now New Jersey to Morocco occurred very close to the time of the extinction.

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#2    Br Cornelius

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Posted 22 March 2013 - 03:26 PM

Notice what was the actual causative agent of the mass extinction - massive releases of sulphates and CO2 causing cooling and warming of the climate.
Theres a lesson there if people could but spot it.

Br Cornelius

Edited by Br Cornelius, 22 March 2013 - 03:29 PM.

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#3    Little Fish

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Posted 24 March 2013 - 12:27 PM

View PostBr Cornelius, on 22 March 2013 - 03:26 PM, said:

Notice what was the actual causative agent
notice the speculative words "may have".

"Theres a lesson there if people could but spot it."
the lesson being, do not extrapolate speculation to fact, and learn the difference between the two.


#4    stevewinn

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Posted 24 March 2013 - 01:01 PM

View PostBr Cornelius, on 22 March 2013 - 03:26 PM, said:

Notice what was the actual causative agent of the mass extinction - massive releases of sulphates and CO2 causing cooling and warming of the climate.
Theres a lesson there if people could but spot it.

Br Cornelius

you cannot compare man released C02

Edited by Saru, 24 March 2013 - 08:11 PM.
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#5    Br Cornelius

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Posted 24 March 2013 - 03:51 PM

Why not - we are releasing massively more CO2 into the atmosphere than all the volcanos which are currently active.

Br Cornelius

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#6    stevewinn

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Posted 24 March 2013 - 08:27 PM

View PostBr Cornelius, on 24 March 2013 - 03:51 PM, said:

Why not - we are releasing massively more CO2 into the atmosphere than all the volcanos which are currently active.

Br Cornelius

i'm well aware of your argument, the figure you used in the past if i remember was one hundred times that of volcanic C02.

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#7    Br Cornelius

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Posted 25 March 2013 - 07:52 AM

View Poststevewinn, on 24 March 2013 - 08:27 PM, said:

i'm well aware of your argument, the figure you used in the past if i remember was one hundred times that of volcanic C02.
The main difference is that we are releasing it in a sustained cumulative way - which is entirely different to the scenario described here.

Br Cornelius

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