BeecherVol
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Why do your numbers differ so much from Fox News' numbers?
I mean, FOX NEWS.
You are kidding, right?
I don't accept statements of these types from ANYONE uncritically... not even people who agree with my conclusions.
Picking up on half-truths an soundbites is something that many people that fall on both sides of this issue fall victim to, unfortunately.
e.g.,
AGW: 30 ft. sea level rises!!!
No-AGW: CO2 lags temperature, not the other way around.
Naturally occurring CO2 hundreds of millions of years ago, back before the dinosaurs when the whole world was a hot house with 3 foot amphibians hanging out with giant dragon flies and sea scorpions. Yes, that atmospheric CO2, at a time of completely ice free poles, dwarfed our current anthropogenically augmented CO2 levels.
Seems like that doesn't really support the point you were making...
What are we both doing up so early?
A team of American and British scientists report that radiocarbon levels in Earth's atmosphere during the last Ice Age were more than twice as high as today, ...........................
The radiocarbon peak Beck and his colleagues found correlates to other peaks for other radioactive isotopes - beryllium 10 and chlorine 36 - found in polar ice cores and lake sediments.
All three isotopes are produced when cosmic rays bombard Earth's upper atmosphere.
Beck says this suggests much higher levels of cosmic rays were striking the atmosphere during the Ice Age.
While the cause of implied changes in ocean mixing rates or carbonate sedimentation rates is unknown, the authors conclude, the observation that the carbon cycle was significantly more sluggish in the recent past "may have profound implications regarding the oceans capacity to take up anthropogenic CO2 emissions from fossil fuel burning.
"We should take this as a warning that climate changes may affect the carbon cycle in previously unexpected ways," Beck said.
Haha gs, I don't think you understood the article. Radiocarbon is referring to a specific isotope, which they are saying was quite high. Basically, the findings suggest that the atmosphere was being exposed to more radiation than previously thought. Also, it implies that the carbon cycle itself was in some way behaving more sluggishly than it is now.
For those of us who value information derived from the planet itself more than we value theories and computer models, Veizer/Shaviv projection from seashells matches the modest rate of global temperature change recorded by weather satellites and high-altitude balloons over the past 22 years. (The satellites and balloons are the most accurate measurements ever taken of the temperatures in the bulk of the atmosphere, far from urban heat islands.)
Iceberg debris from the floor of the North Atlantic says we've had nine moderate global warmings and coolings over the last 12,000 years, in a 1,500 year cycle that coincides exactly with a cycle in the magnetic activity of the sun. Veizer and Shaviv say three-fourths of the earth's temperature change is driven by cosmic rays from around the galaxy.
Neither study finds much impact on the earth's temperatures from CO2 changes.
Then Dr. Nir Shaviv, an astrophysicist at the University of Toronto, told him that cosmic rays striking the earth cycle up and down over 135 million years as our solar system passes through one of the bright arms of the Milky Way. The Milky Way has intense levels of cosmic rays that tend to cool the earth, stimulating the formation of low-level clouds that reflect heat back into space. (High-level clouds tend to trap heat and warm the planet.)
The findings are completely in line with the current thinking of global climate change: The carbon cycle slowed, causing an increase of CO2 during the ice age. This buildup eventually contributed to the end of the ice age. This is that "lag" that you like to talk about. The "lag" is from a feedback loop that helps knock us out of (and in, I suppose) ice ages.
There are two overriding factors, neither over which we any control whatsoever.
Solar activity (or lack of activity) and variables in Earth's orbit around the sun.
The main changes to the earth's orbit are; the shape of the Earth's orbit around the sun varies between an ellipse to a more circular shape and the earth's axis is tilted relative to the sun at around 23° but this tilt oscillates between 22.5° and 24.5° plus the fact that the Earth wobbles in it's rotational axis.
The combined effect of these orbital cycles cause long term changes in the amount of sunlight hitting the earth at different seasons, particularly at high latitudes.
During warming periods CO2 is released from the oceans.
Naturally occuring levels of CO2 in our atmosphere dwarf all CO2 ever released by human activity.
Then Dr. Nir Shaviv, an astrophysicist at the University of Toronto, told him that cosmic rays striking the earth cycle up and down over 135 million years as our solar system passes through one of the bright arms of the Milky Way. The Milky Way has intense levels of cosmic rays that tend to cool the earth, stimulating the formation of low-level clouds that reflect heat back into space. (High-level clouds tend to trap heat and warm the planet.)...................
In a unique, cross-disciplinary study recently published by the Geophysical Society of America, Veizer and Shaviv conclude that 75 percent of the earth's temperature variability in the past 500 million years is due to changes in our bombardment by cosmic rays as we pass in and out of galactic spiral arms. (They note that the sun continued to brighten during the 20th century. It may have accounted for about one-third of the observed warming since 1900.)
Veizer and Shaviv conclude that a doubling of today's CO2 levels would only increase global temperatures a modest 1.4 degree Fahrenheit. The UN's Intergovernmental Panel on Climate Change, in dramatic contrast, estimates two to seven times as much warming from such a CO2 increase (2.7 to 9.9F).
The two scientists warn that the billion-dollar Global Circulation computer models that predict dangerous global warming from CO2 increases are particularly weak at modeling changes in clouds that matter vitally to Earth's temperatures. Cosmic rays stimulate low-lying clouds, by electrically charging tiny particles (aerosols) so they collect more water droplets from the atmosphere. More low clouds mean a cooler planet.
Increased solar activity, in contrast, tends to reduce cloud cover and stimulate heating. In addition, a more active sun also emits more solar wind. Dr. Tim Patterson, a paleoclimatologist at Canada's Carleton University, says solar wind is a stream of very high-speed charged particles that deflect the galactic cosmic rays that would otherwise strike the earth and cool it. Thus, says Dr. Patterson, the warming from the sun and the cooling from galactic cosmic rays are in a constant competition to dominate Earth's temperature.
The implications of this are that we could be disrupting the carbon cycle in some way, that could lead to unpredictable climatic ramifications, as the authors of the study concluded and you conveniently left out:
While the cause of implied changes in ocean mixing rates or carbonate sedimentation rates is unknown, the authors conclude, the observation that the carbon cycle was significantly more sluggish in the recent past "may have profound implications regarding the oceans capacity to take up anthropogenic CO2 emissions from fossil fuel burning.
The rise in land temperatures, the study states, can be tied directly to increased heat and humidity coming from warmer oceans, which in turn, the study admits, may be caused solely by natural forces.
"We should take this as a warning that climate changes may affect the carbon cycle in previously unexpected ways," Beck said.
Why do you ignore the conclusions of the authors of the study? That's kind of disingenuous.
Meanwhile, the computer modelers and "researchers" willing to scare us about CO2 now divvy up more than $4 billion per year in government grants. The eco-activist organizations probably reap at least that much per year from CO2 scaring in memberships, subscriptions, and foundation grants from the frightened.
............
In fact, CO2 levels have been as much as 18 times higher than today during the Veizer temperature record. The earth's CO2 levels were 10 times higher than today's during the frigid Ordovician glacial period about 440 million years ago. Human CO2 releases, moreover, make up only about 3 percent of the natural carbon cycle.
I am just old enough to remember the scare of the 1970's... industrial pollution was going to cause global cooling, lock up mass amounts of water, and destroy the earth...
Of course the vain alarmists are much more intelligent now than then.
IIRC, a "real" warming pattern occurred after an extended cool spell about 1000 years ago... it helped bring Europe out of the Dark Ages.
By and large, the warm cycles free water, increase growing seasons, and reduce drought. It is historically true... and true now. Unfortunately we are likely headed into a cooling cycle... and some predict a longer than usual one. If so, we will probably see widespread crop failure and famine... and war.
The earth has been self-regulating to equillibrium throughout its history. Solar activity is MUCH more significant than anything man has done or ever could do short of something like a mass nuclear war.
Yeah. That too. Toeing the party line in science is unfortunately the only way those guys get grants. Step off the reservation or question accepted dogmas/philosophies... and you get nada.
The modern academic science establishment bears a striking resemblance to the heavy handed flat-earthers of a bygone era. Anyone who dares question basic presuppositions will get summararily excommunicated as a heretic.
The whole AGW theory is based on the fact that we should expect global warming based on the fact that CO2 is presently increasing in our atmosphere and we humans are contributing 3% of that increase.
If past warming cycles weren't due to higher CO2 densities, why would we expect the future to be different than the past???
Alright so a guy @ work swears they have proof that makes "GCChange" a "SCIENTIFIC FACT". Those are his exact words. I keep telling him I don't believe it because I'm not sold that its a unanimous acceptance in the scientific community. I'm new and clueless to this stuff and I just want to know what the ** he is talking about as his, so called, proof. Any help please?
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So the changes that would be brought about by, say Cap and trade, would/could be considered excessive?
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Lindzen is a natural-born contrarian (which is a quality I can respect).
But let's be honest. He's brilliant, but 70 years old and almost always takes the minority view. Did you know he is adamant that cigarette smoking is not really linked to lung cancer?
In Nazi Germany, for instance, abstinence from tobacco was a "national socialist duty"
"The Fuhrer is deeply religous, though completely anti-Christian. He views Christianity as a symptom of decay. Rightly so. It is a branch of the Jewish race... Both [Judaism and Christianity] have no point of contact to the animal element, and thus, in the end, they will be destroyed. The Fuhrer is a convinced vegetarian, on principle. His arguments cannot be refuted on any serious basis. They are totally unanswerable."