Analysis Shows Drastic Climate Change Near End Of Last Ice Age

Monday June 23, 2008, 2:44 pm
It is interesting to see these ups and doens - there have alwasy been natural variations. Infact four of the five mass extinction events on earth are associated with warming:

Fossil Study Links Extinctions to Warming

Whenever the world's tropical seas warm several degrees, Earth has experienced mass extinctions over millions of years, according to a first-of-its-kind statistical study of fossil records. And scientists fear it may be about to happen again -- in decades.

http://www.care2.com/news/member/537645068/557088


The difference with this current warming period is that we are helping it along quite a bit - older article but worth the read:

Stronger Evidence For Human Origin Of Global Warming

http://www.sciencedaily.com/releases/2007/07/070730141145.htm

Thanks for another good find Michael :)

Monday June 23, 2008, 3:45 pm
noted thanks michael.

Monday June 23, 2008, 3:55 pm
Thanks Michael. Noted. Let's see how long we last...

Monday June 23, 2008, 4:35 pm
Thanks for the post Michael!
Again I agree Chris, humankind is contributing to a hastened warming of the planet. It is my belief that the last 300years of industrial revolution has increased the worlds carbon footprint two fold.

If we continued using horse and buggy, globalisation and modern technology would not be what it is today. So it's inevitable EVERY person must contribute in some way to stop the Temperature Rise and extreme weather forecasted in the not so distant future.

Monday June 23, 2008, 5:35 pm
We always known that the ice age effect was coming, but, because of the global warming and the tempatures rising, which man hasn't helped any, the ice age effect is going to be worse than we thought. The world in its own way was going into the golbal effect naturally. It is a cycle that happens. Man, and all there fuel and polution and cutting down the forest just made it worse, and happening 5 times faster and 10 times worse. They have already proved it is happening in Alaska.

Tuesday June 24, 2008, 5:51 am
This is fascinating. Thanks Michael.

Tuesday June 24, 2008, 6:06 am
Great article...Thanx Michael

Tuesday June 24, 2008, 11:39 am
Interesting article. Again it goes to show how mankind is pushing along a dramatic change in climate. What in the past took millenia (which in the terms of the article is a very short time) mankind has now managed to accomplish the same changes in just a handful of decades. This makes it even more difficult for both human and other species to adapt. We are seeing a couple of millenias' natural/normal change literally taking place over dozen decades thanks to our human induced global warming lifestyles (over consumption, CO2, other greenhouse gasses, and so forth). It is about time people wake up :-)

Tuesday June 24, 2008, 12:41 pm

We are not alone on this earth! You can not rule mankind.

Tuesday June 24, 2008, 1:19 pm
Mankind has always had the great power of Healing through the power of thought and their strong life-force energy from their Heart Chakra. When the people are United..., no man-made medicine can come light-years close to its power. Unforetunately, this knowledge has been kept from humanity for at least 50 years, so they could still be dependent on the Pharma Industry and Medical Profession, for profits and greed. The Tesla "syndrome", just in another sector of the economy. If you stop and think...., we wouldn't need anything from the corporate world nor money. Alas..., the Illusion.

No, we aren't alone, and we will be fine. God is of ALL, and ALL is of God. No one can hide anything, that doesn't come "full circle" at some future point, which includes climate change that leads to another Ice Age, but from a progression helped by mankind. Although, many ARE starting to wake-up, and many ARE trying to bring TRUTH with LOVE and LIGHT.
Very Noted, Michael...Much Love and Peace..Namaste, Dar

Tuesday June 24, 2008, 1:24 pm
What can we do? I have made the personal commitment to family planning. I have no children, and plan on having one child and adoption. Growth and development are eating this planet alive.

What else? We can send that thank you note to Teddy Kennedy. Thank Teddy for his warm support of the carnage in Iraq. Teddy Kennedy and his neighbors have raised tens of millions of dollars opposing a wind farm off of Nantucket, as they claim it will 'spoil their view'. Instead residents of Cape Cod have to get their power from that diesel generator Teddy Kennedy prefers. (I guess the diesel generator is conviently located. It's not spoiling Teddy Kennedy's view.)

I thank Care2 members for using Amtrak. And Care2 is leading the way vegetarian/flexitarian.

People are beginning to buy electric cars - we know a lot of power comes from coal, that will change shortly.

Tuesday June 24, 2008, 5:38 pm
Wait a minute....the article discusses periods when the climate changed abruptly with no help from us.

It has nothing to do with burning of fossil fuel. How do you all make that leap . That's totally illogical.

If anything, it should give you a hint that our piddling 3% contribution to atmospheric CO2 is meaningless.

The Earth has its own rythms and we need to adapt to them. The scientists
are still trying to figure out what caused the abrupt changes so we could adapt faster.

Here is where an astrophysicist might come in handy.

Global warming not man-made phenomenon
Hebrew University, Canadian scientists cite data from study
Global warming will not be helped much by efforts to reduce carbon dioxide emission into the atmosphere, say two scientists who have studied the matter.

Dr. Nir Shaviv, an astrophysicist from the Racah Institute of Physics of the Hebrew University of Jerusalem, and Prof. Jan Veizer a geochemist at the University of Ottawa in Canada and Ruhr University in Germany, say that temperature variations are due more to cosmic forces than to the actions of man.

In a recent article published in GSA Today (the journal of the Geographic Society of America) and described in Nature, Shaviv and Veizer tell of their studies illustrating a correlation between past cosmic ray flux – the high-energy particles reaching us from stellar explosions -- and long-term climate variability, as recorded by oxygen isotopes trapped in rocks formed by ancient marine fossils. The level of cosmic ray activity reaching the earth and its atmosphere is reconstructed using another isotopic record in meteorites.

The study showed that peak periods of cosmic rays reaching the earth over the past 550 million years coincided with lower global temperatures, apparently due to the way that the cosmic rays promote low-level cloud formation (hence blocking out sun warming). No correlation was obtained, however, with the changing amount of atmospheric carbon dioxide.

The conclusion of the two scientists is, therefore, that celestial processes seem to be the dominant influence on climate change, and that increased carbon dioxide release, while certainly not beneficial, is only secondary to those forces which are beyond our control.

In practical terms, says Dr. Shaviv, "The operative significance of our research is that a significant reduction of the release of greenhouse gases will not significantly lower the global temperature, since only about a third of the warming over the past century should be attributed to man." Thus, say the scientists, the Kyoto accord of 1997 -- which was aimed at tackling the global warming phenomenon through limitations on carbon dioxide -- is not the panacea some thought it would be.

Taking the long-range view, Dr. Shaviv and Prof. Veizer believe that fluctuations in cosmic ray emissions account for about 75 percent of climate variation over millions of years. They acknowledge that this position pits them against prevailing scientific opinion, which still places a heavy emphasis on the negative role of greenhouse gases.

http://www.eurekalert.org/pub_releases/2003-08/huoj-gwn081203.php

Tuesday June 24, 2008, 8:06 pm
Natural climate change can be distinguished from man-made climate change in a simple and obvious way, by ruling out all natural variations as the source of recent temperature rises. And that has already been done. Whatever natural variations are affecting global temperatures now, humans are adding to them with greenhouse gas emissions.

A couple of dissenters promoting a hypothesis about cosmic rays don't amount to much. Experimentation must be done to confirm the process of cosmic rays on cloud formation.

Since Venus is completely covered with clouds, may we assume that it is recieving far more cosmic rays than Earth is?

Tuesday June 24, 2008, 8:14 pm
Hint - many of those hot events were associated wih high CO2 levels (natural emmissions in those cases) we are helping it along this time - and given that four of the five mass extinction events are associated with warm periods, this may not be a good thing to encourage...

Tuesday June 24, 2008, 9:14 pm
"They acknowledge that this position pits them against prevailing scientific opinion, which still places a heavy emphasis on the negative role of greenhouse gases. "

Sooo, lets go with this guy who admits that the CONSENSUS is that he is wrong...OK, good plan :)