Beam me to Planet Gore !
Posted on 07/15/2009 8:35:45 AM PDT by Ernest_at_the_Beach
SINGAPORE (Reuters) - A dramatic warming of the planet 55 million years ago cannot be solely explained by a surge in carbon dioxide levels, a study shows, highlighting gaps in scientists' understanding of impacts from rapid climate change.
During an event called the Palaeocene-Eocene Thermal Maximum, global temperatures rose between 5 and 9 degrees Celsius within several thousand years. The world at that time was already warmer than now with no surface ice.
"We now believe that the CO2 did not cause all the warming, that there were additional factors," said Richard Zeebe, an oceanographer with the University of Hawaii at Manoa.
"There may have been an initial trigger," he told Reuters on Wednesday from Hawaii. This could be a deep ocean warming that caused a catastrophic release of methane from hydrate deposits under the seabed.
Methane is a potent greenhouse gas but much of it is oxidised into CO2 when it is released from hydrate deposits.
Zeebe and his colleagues estimated the amount of CO2 released during the Palaeocene-Eocene event by studying sediment cores from seabeds around the globe. Their study is published in the latest issue of Nature Geoscience.
FUTURE WARMING
(Excerpt) Read more at in.reuters.com ...
Did not cause all of it? Then if it caused some of it, what was the source of the CO2 at that time? Just what were the dinosaurs manufacturing and driving at that time?
BS!!!! The warming 55 million years ago was caused by dinosaurs driving SUVs, EVERYONE knows that!!!!
/sarc (for those who aren't sure)
Heretics! Blasphemers! Don’t you care about Mother Earth? /s
The CO2 then was from an advanced civilization who mass produced SUVs, lawnmowers, airplanes, and breathed and flatulated, and worshiped their equivalent of Gore. Apparantly, they advanced so much, with so much CO2 output, they warmed the planet to their complete destruction [and, in that case, complete obliteration of their remains]. We’re just repeating the cycle!
you bunch of DUmmies. the dinosuars died out 10M yrs before this warming period (lack of universal health care was the cause I’ve heard).
It was giant tree sloths driving giant Hummers 55M years ago
Ping me if you find one I've missed.
Really big ass-ed SUV’s
CO2 not the only cause??? Denier! Our climate is controlled by CO2 alone! Get a rope!
from the end of the Eocene:
http://www.freerepublic.com/focus/f-chat/2215750/posts
http://www.sciencemag.org/cgi/content/full/280/5367/1250
Theory of Periodic Mass ExtinctionsWhy has interest in this hypothesis subsided? There are two reasons. First, there are statistical questions about extinction rates that just cannot be answered. It is not clear whether other hypotheses can fit the empirical data as well as does the hypothesis of periodicity. The distribution of extinction events in time is certainly not random, but there is more than one way to analyze the data. Does the fact that the data appear to fit well to a model of periodicity mean that the events truly are periodic? This question was debated throughout the late 1980s without reaching a resolution.
Frank R. Ettensohn
The second reason for the loss of interest is one not uncommon to science: Here is an intriguing observation that no one knows how to explain. Researchers formulated a number of very interesting astronomical hypotheses to account for the 26-million-year periodicity of extinction. The most famous of these was the Nemesis, or 'death star,' hypothesis, which stated that the sun has a distant companion whose highly elliptical orbit brings it into the Oort Cloud (a swarm of frozen comets orbiting far from the sun) once every 26 million years. During each pass through the Oort Cloud, the companion's gravity would scatter huge numbers of comets, some of which would crash into Earth. The environmental damage caused by these impacts would lead to an elevated rate of extinctions.
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None of the earth’s past dramatic warning periods can be explained by CO2 levels.
This was clear back in the 1950’s.
OK. It makes for some very interesting science fiction but just what in the hell does it have to do with the price of tea in China? Answer: It has absolutely nothing to do with either the price of tea or real science.
“Gee whiz, I just can’t think of what might have caused past global warming” he said as he shielded his eyes from a very bright July sun.
I believe I have found the mechanism that allows the CO^2 & CH^4 to retroactively warm the planet.
thiotimoline is notable for the fact that when it is mixed with water, the chemical actually begins to break down before it contacts the water. This is explained by the fact that in the thiotimoline molecule, there is at least one carbon atom such that, while two of the carbon's four chemical bonds lie in normal space and time, one of the bonds projects into the future and another into the past. Thiotimoline is derived from the bark of the shrub Rosacea Karlsbadensis rufo, ... Thiotimoline
The undersea methane deposits were derived from thiotimoline rich plant materials that became inundated by catastrophic sea level rises. As the thiotimoline dissolved before the water hits it, it required that the warming occur in order to melt the ice, in order to flood the thiotimoline bearing plant materials.
That allowed the release of the gasses, with a small, but significant in the aggregate, amount of the thiotimoline's carbon isomer to form CO^2, so the fact that atmospheric CO^2 levels lag warming by about 800 years is now explained.
This same phenomenon also helps explain how the government ends up with your taxes in its pocket BEFORE you even pay them.
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