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FatalWishes
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Registered: 6/24/2004
Location: Fort Worth Texas
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Points: 104296
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Life on Earth snuffed out by global warming
| Quote From Source: | SUFFOCATING global warming is to blame for the worst mass-extinction on Earth, according to international researchers tracking the cause of the "Great Dying" 250 million years ago.
Until now, circumstantial evidence suggested that an asteroid wiped out more than 90 per cent of all marine life and almost 75 per cent of all land plants and animals, like that which took out the dinosaurs 65 million years ago.
But new geochemical and fossil data reported today in the journal Science indicates that continuous volcanic eruptions in Siberia set off runaway global warming with disastrous consequences.
| | Click source url to view entire story. |
Source URL: http://www.theaustralian.new...744,12010848%5E30417,00.html |
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DanG
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Location: SW FL
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Volcanoes 'wiped out life on Earth, not giant asteroid'
| Quote From Source: | An asteroid impact did not cause the "Great Dying", when most of the planet's species became extinct 250 million years ago, scientists say today.
Instead, two new studies suggest high temperatures, toxic gases and low oxygen triggered by intense volcanic activity were to blame.
The Great Dying, the Permian-Triassic extinction, is considered the biggest catastrophe in the history of life on Earth, with 90 per cent of all marine life and almost three quarters of land-based plant and animal life becoming extinct.
| | Click source url to view entire story. |
Source URL: http://www.telegraph.co.uk/n...news/2005/01/21/ixworld.html |
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DanG
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Posts: 5520
Registered: 6/30/2004
Location: SW FL
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Points: 114991
Mood: Stunned Amazement
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Life smothered in Earth's worst extinction
| Quote From Source: | Life suffocated to death slowly in stagnant seas of hydrogen sulfide during the Earth's worst mass extinction, says a new study.
Australian researcher Associate Professor Kliti Grice of the Curtin University of Technology in Perth and colleagues report their research online today ahead of print in the journal Science.
Scientists have long argued over the cause of a massive extinction, known as the Great Dying, which wiped out 98% of species between the Permian and Triassic periods 250 million years ago.
| | Click source url to view entire story. |
Source URL: http://abc.net.au/cgi-bin/co...ce/news/stories/s1284992.htm
so there ya go, different theories.
peace,
Dan
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posted on 1/21/2005 at 10:32
