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Originally posted by djohnsto77
soficrow, I really can't understand how you used this article to leap to global climate change.
I don't see anything in the article saying that, nor can I imagine a bit of gamma radiation doing this.
Originally posted by ZPE StarPilot
A gamma burst would sterilize one side of the planet. Not much for a temperature change.
It's only a matter of time... errr.... or is it a time of matter....
Originally posted by astrocreep
Ah finally, someone has hit upon the real reasons our climates change. I think you're right soficrow in that those at the top probably know or have a good idea what chief mechanisms are in play but think they know it all.
The main caveat of your very knowledgable post, and I think you'll be seeing it as soon as the GW crowd wakes up and logs on, is that by suggesting that there are other factors much more capable of affecting climate change cycles, you take away from their all important political weapon. See, to them, its not about accuracy or truth or even the ultimate survival of the human race, its about the next 2 to 3 years and how it can all be used to overthrow some insignificant politcal personality and replace him with yet another insignificant personality for no other reason than their party affiliations. Its not about science to them, its about a cause to fill their meaningless lives with some purpose and self importance.
My position is and has been for the last few years that we as a human race have very little if any affect upon the climate
and all this effort should be put into how to cope and survive inevitable changes.
To talk of preserving or somehow freezing a state of the environment or climate on a planet as dynamic as Earth is , for lack of a more tactful word, stupid.
So, soficrow, great work!
Astrophysicists using the H.E.S.S. gamma-ray telescopes, in Namibia, have announced the detection of very-high-energy gamma rays from huge gas clouds known to pervade the centre of our Galaxy.
...Possible reasons why cosmic rays are enhanced and of higher energies at the heart of our Galaxy include the echo of a supernova which exploded some ten thousand years beforehand, or a burst of particle acceleration from the super massive black hole at the very centre of our Galaxy.
...The H.E.S.S. data show that the density of cosmic rays exceeds that in the solar neighbourhood by a significant factor. Interestingly, this difference increases as we go up in energy, which implies that the cosmic rays have been recently accelerated. So, these data hint that the clouds are illuminated by a nearby cosmic-ray accelerator, which was active over the last ten thousand years. Candidates for such accelerators are a gigantic stellar explosion which apparently went off near the heart of our Galaxy in "recent" history; another possible acceleration site is the super-massive black hole at the centre of the Galaxy.
Originally posted by soficrow
Our planet is a changeable place - the one constant is change. But our industrial, economic and political systems remain static, not responsive - leaving us little better off than prehistoric man with respect to empowerment.
Granted, numerous factors influence the earth's climate - and it does change, always has.
But knowing there are larger influences does NOT preclude the fact that human activities can and do have an effect.
Nor does that knowledge imply that we are powerless to plan and position to deal effectively with change.
Originally posted by Muaddib
...i would like to see evidence that earthquakes suddenly appear in areas that have been drilled for petroleum.
You would need to find the process being repeated in several places that have been drilled. That i know of there has never been any evidence to support your claim.
Oil and Gas Production Induced Earthquake References:
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36. J.T. Rutledge, W.S. Phillips, T.D. Fairbanks, D.W. Anderson, Microseismicity Associated with Primary Oil Production in Clinton County, Kentucky [abstract], Abstracts XXI General Assembly Int'l Union Geodesy & Geophys. A363 (1995)
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39. Paul Segall, Induced Stresses due to Fluid Extraction from Axisymmetric Reservoirs, 139 Pure & Applied Geophysics 535 (1992)
40. Paul Segall, Stress and Subsidence from Subsurface Fluid Withdrawal in the Epicentral Region of the 1983 Coalinga Earthquake, 90 J.Geophys. Res. 6801 (1985)
41. Paul Segall, Earthquakes Triggered by Fluid Extraction, 17 Geology 942 (1989)
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47. R. J. Wetmiller, Earthquakes near Rocky Mountain House, Alberta, and their Relationship to Gas Production Facilities, 23 Can. J. Earth Sci. 172 (1986)
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... i do agree that we must make preparations for the changes that are coming, for they will affect all of us.
Originally posted by soficrow
Mauddib:
You asked a question, I answered it - and asked that you take further discussion about how oil and gas drilling causes quakes to Quakes Trigger Quakes.
THIS thread is about interstellar collisions and climate change, with limited wiggle room for discussion about how complex systems might interract.
Thank you.
sofi
b. In the past, this planet's oil, water, gas, and other deposits served as "shock absorbers." These shock absorbers now are gone. The predictable results are not good.