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Originally posted by edsinger
Would that be only ones who support man made global warming?
Originally posted by melatonin
That's why the best the 'sceptics' can offer is newpaper articles etc. containing disinformation, dishonesty, misleading claims. Everything but real science.
Originally posted by melatonin
.............
That's why the best the 'sceptics' can offer is newpaper articles etc. containing disinformation, dishonesty, misleading claims. Everything but real science.
Globally synchronous climate change 2800 years ago: Proxy data from peat in South America
Frank M. Chambersa, , , Dmitri Mauquoyb, Sally A. Braina, Maarten Blaauwc and John R.G. Daniella
aCentre for Environmental Change and Quaternary Research, Department of Natural and Social Sciences, University of Gloucestershire, Cheltenham GL50 4AZ, UK
bDepartment of Geography and Environment, University of Aberdeen, Elphinstone Road, Aberdeen AB24 3UF, UK
cCentro de Investigación en Matemáticas, A.P. 402, Guanajuato, Gto., C.P. 36000, Mexico
Received 15 August 2006; revised 27 October 2006; accepted 2 November 2006. Editor: H. Elderfield. Available online 19 December 2006.
Abstract
Initial findings from high-latitude ice-cores implied a relatively unvarying Holocene climate, in contrast to the major climate swings in the preceding late-Pleistocene. However, several climate archives from low latitudes imply a less than equable Holocene climate, as do recent studies on peat bogs in mainland north-west Europe, which indicate an abrupt climate cooling 2800 years ago, with parallels claimed in a range of climate archives elsewhere. A hypothesis that this claimed climate shift was global, and caused by reduced solar activity, has recently been disputed. Until now, no directly comparable data were available from the southern hemisphere to help resolve the dispute. Building on investigations of the vegetation history of an extensive mire in the Valle de Andorra, Tierra del Fuego, we took a further peat core from the bog to generate a high-resolution climate history through the use of determination of peat humification and quantitative leaf-count plant macrofossil analysis. Here, we present the new proxy-climate data from the bog in South America. The data are directly comparable with those in Europe, as they were produced using identical laboratory methods. They show that there was a major climate perturbation at the same time as in northwest European bogs. Its timing, nature and apparent global synchronicity lend support to the notion of solar forcing of past climate change, amplified by oceanic circulation. This finding of a similar response simultaneously in both hemispheres may help validate and improve global climate models. That reduced solar activity might cause a global climatic change suggests that attention be paid also to consideration of any global climate response to increases in solar activity. This has implications for interpreting the relative contribution of climate drivers of recent ‘global warming’.
Climate forced atmospheric CO2 variability in the early Holocene: A stomatal frequency reconstruction
C.A. Jessena, , , M. Rundgrena, S. Björcka and R. Muschelerb
aGeoBiosphere Science Centre, Quaternary Sciences, Lund University, Sölvegatan 12, SE223 62 Lund, Sweden
bNational Center for Atmospheric Research, Climate and Global Dynamics Division, Paleoclimatology, 1850 Table Mesa Drive, Boulder, CO 80305–3000 USA
Received 22 August 2005; accepted 16 November 2006. Available online 30 January 2007.
Abstract
The dynamic climate in the Northern Hemisphere during the early Holocene could be expected to have impacted on the global carbon cycle. Ice core studies however, show little variability in atmospheric CO2. Resolving any possible centennial to decadal CO2 changes is limited by gas diffusion through the firn layer during bubble enclosure. Here we apply the inverse relationship between stomatal index (measured on sub-fossil leaves) and atmospheric CO2 to complement ice core records between 11,230 and 10,330 cal. yr BP. High-resolution sampling and radiocarbon dating of lake sediments from the Faroe Islands reconstruct a distinct CO2 decrease centred on ca. 11,050 cal. yr BP, a consistent and steady decline between ca. 10,900 and 10,600 cal. yr BP and an increased instability after ca. 10,550 cal. yr BP. The earliest decline lasting ca. 150 yr is probably associated with the Preboreal Oscillation, an abrupt climatic cooling affecting much of the Northern Hemisphere a few hundred years after the end of the Younger Dryas. In the absence of known global climatic instability, the decline to ca. 10,600 cal. yr BP is possibly due to expanding vegetation in the Northern Hemisphere. The increasing instability in CO2 after 10,600 cal. yr BP occurs during a period of increasing cooling of surface waters in the North Atlantic and some increased variability in proxy climate indicators in the region.
The reconstructed CO2 changes also show a distinct similarity to indicators of changing solar activity. This may suggest that at least the Northern Hemisphere was particularly sensitive to changes in solar activity during this time and that atmospheric CO2 concentrations fluctuated via rapid responses in climate.
Solar resonant diffusion waves as a driver of terrestrial climate change
Robert Ehrlich, a,
aGeorge Mason University, Fairfax, VA 22030, USA
Received 11 September 2006; revised 4 January 2007; accepted 9 January 2007. Available online 20 January 2007.
Abstract
A theory is described based on resonant thermal diffusion waves in the sun that explains many details of the paleotemperature record for the last 5.3 million years. These include the observed periodicities, the relative strengths of each observed cycle, and the sudden emergence in time for the 100 thousand year cycle. Other prior work suggesting a link between terrestrial paleoclimate and solar luminosity variations has not provided any specific mechanism. The particular mechanism described here has been demonstrated empirically, although not previously invoked in the solar context. The theory, while not without its own unresolved issues, also lacks most of the problems associated with Milankovitch cycle theory.
since the Sun is going through an increase in activity since at least 60 years ago
Appearing before the Commons Committee on Environment and Sustainable Development last year, Carleton University paleoclimatologist Professor Tim Patterson testified, "There is no meaningful correlation between CO2 levels and Earth's temperature over this [geologic] time frame. In fact, when CO2 levels were over ten times higher than they are now, about 450 million years ago, the planet was in the depths of the absolute coldest period in the last half billion years." Patterson asked the committee, "On the basis of this evidence, how could anyone still believe that the recent relatively small increase in CO2 levels would be the major cause of the past century's modest warming?"
The late Ordovician (~440 Ma) represents the only interval during
which glacial conditions apparently coexisted with a CO2-rich
atmosphere. Critically, though, widespread ice sheets likely
lasted
Originally posted by melatonin
Yes, muaddib, solar variations and orbital effects would have been the predominate (but not only) natural driver of climate in the past. I have never denied this, and so your claims are pure strawman rubbish.
Still means nothing for this current change. The earth didn't have humans pumping out GHGs at a massive rate (and significantly altering the biosphere in other ways) in the past.
I think you've just provided an example of exactly what I was referring to, especially as solar activity has been pretty stable for a number of decades.
Published: 14:13 EST, September 26, 2006
Meteorites record past solar activity
Ilya Usoskin (Geophysical Observatory, University of Oulu, Finland) and his colleagues have investigated the solar activity over the past centuries. Their study is to be published this week in Astronomy & Astrophysics Letters. They compare the amount of Titanium 44 in nineteen meteorites that have fallen to the Earth over the past 240 years. Their work confirms that the solar activity has increased strongly during the 20th century. They also find that the Sun has been particularly active in the past few decades.
...................
Until now, reconstructing past solar activity was thus very uncertain. This is shown by how various reconstructions that were previously published differ from one other. In the new study to be published this week in Astronomy & Astrophysics Letters, the team shows that the Sun is currently particularly active compared to earlier centuries.
Originally posted by melatonin
..............
It worked for the tobacco industry, for chemical industries, for the CFC issue etc etc for a time, it slowed down acceptance of well-supported scientific positions and aided continued profit. We know what is going on, we know the way these shills work, we know they are wrong on the science. It's all part of the denialist industry.
Originally posted by Muaddib
Research shows the Sun's activity has been increasing and keeps increasing, and even after you are shown shuch research you keep falling back trying to claim that is not true... sorry mate, you are wrong...
Long-term solar activity reconstructions: direct
test by cosmogenic 44Ti in meteorites
I. G. Usoskin1, S. K. Solanki2, C. Taricco3,4, N. Bhandari5, and G. A. Kovaltsov6
1 Sodankylä Geophysical Observatory (Oulu unit), POB 3000, 90014 University of Oulu, Finland
e-mail: [email protected]
2 Max-Planck-Institut für Sonnensystemforschung, 37191 Katlenburg-Lindau, Germany
3 Dipartimento di Fisica Generale, Università di Torino, 10125 Torino, Italy
4 Istituto di Fisica dello Spazio Interplanetario (IFSI), INAF, Torino, Italy
5 Basic Sciences Research Institute, 380009 Ahmedabad, India
6 Ioffe Physical-Technical Institute, Politekhnicheskaya 26, 194021 St. Petersburg, Russia
Received 12 June 2006 / Accepted 29 June 2006
ABSTRACT
Aims. Long-term solar activity in the past is usually estimated from cosmogenic isotopes, 10Be or 14C, deposited in terrestrial archives
such as ice cores and tree rings. A number of such reconstruction models have been proposed which differ from each other significantly.
This approach suffers, however, from uncertainties due to the sensitivity of the data to several terrestrial processes. Here we
propose a method to constrain these solar activity reconstructions using cosmogenic 44Ti activity in meteorites which is not affected
by terrestrial processes.
Methods. We test the veracity of recent solar activity reconstructions using the data on the activity of cosmogenic isotope 44Ti in
meteorites which fell during the past 235 years, and provide an independent and direct measure of the cosmic ray flux near the Earth
and allow decoupling of solar activity variations from terrestrial influences.
Results. We demonstrate that the 44Ti data can distinguish between various reconstructions of past solar activity based on cosmogenic
isotope data in terrestrial archives, allowing unrealistic models to be ruled out. We also show that a model based on the sunspot
number record is consistent with the data on 44Ti activity in meteorites, thus confirming the validity of the method. In particular the
44Ti data confirm significant secular variations of the solar magnetic flux during the last century.
We have thus shown that most recent reconstructions
of solar activity, in particular those based on 10Be data
in polar ice (Usoskin et al. 2003, 2004b;McCracken et al. 2004)
and on 14C in tree rings (Solanki et al. 2004), are consistent
with the 44Ti data.
Unusual activity of the Sun during recent decades compared to the previous 11,000 years
S. K. Solanki1, I. G. Usoskin2, B. Kromer3, M. Schu¨ ssler1 & J. Beer4
1Max-Planck-Institut fu¨r Sonnensystemforschung (formerly the Max-Planck-Institut fu¨r Aeronomie), 37191 Katlenburg-Lindau, Germany
2Sodankyla¨ Geophysical Observatory (Oulu unit), University of Oulu,
90014 Oulu, Finland 3Heidelberger Akademie der Wissenschaften, Institut fu¨r Umweltphysik, Neuenheimer Feld 229, 69120 Heidelberg, Germany
4Department of Surface Waters, EAWAG, 8600 Du¨bendorf, Switzerland
....
Although the rarity of the current episode of high average sunspot numbers may indicate that the Sun has contributed to the unusual climate change during the twentieth century, we point out that solar variability is unlikely to have been the dominant cause of the strong warming during the past three decades.
Originally posted by pai mei
I don't trust the greenhouse effect.
Originally posted by edsinger
There Is NO Man-Made Global Warming
Seems that what I have been thinking all along about this Global warming crap is coming to light! Seems many scientists are not jumping on this obviously flawed bandwagon...
December 14, 2004
There is no scientific evidence to back claims of man-made global warming. Period. Anyone who tells you that scientific research shows warming trends--be they teachers, newscasters, Congressmen, Senators, Vice Presidents or Presidents--is wrong. In fact, scientific research through U.S. government satellite and balloon measurements shows that the temperature is actually cooling--very slightly--.037 degrees Celsius.
And this one tops the cake if you miss the old air conditioners that actually cool your car etc
Let's just take NASA, for example--the most trusted name in American science. A lot of NASA scientists have fallen into the money trap. Environmental science has become the life-blood of the space program as the nation has lost interest in space travel. To keep the bucks coming, NASA has justified launches through the excuse of earth-directed environmental research. And the budgets keep coming. At the same time, many of NASA's scientists have a political agenda in great harmony with those who advocate global warming. And they're not above using their position to aid that agenda whenever the chance is available.
This was never more clearly demonstrated than in 1992 when a team of three NASA scientists were monitoring conditions over North America to determine if the ozone layer was in danger. Inconclusive data indicated that conditions might be right for ozone damage over North America--if certain things happened.
True scientists are a careful lot. They study, they wait, and many times they test again before drawing conclusions. Not so, the green zealot. Of this three-member NASA team, two could not be sure of what they had found and wanted to do more research. But one took the data and rushed to the microphones with all of the drama of a Hollywood movie and announced in hushed tones that NASA had discovered an ozone hole over North America.
Then Senator Al Gore rushed to the floor of the Senate with the news, and drove a stampede to immediately ban Freon--five years before Congress had intended--and without a suitable substitute. He then bullied President George H.W. Bush to sign the legislation by saying the ozone hole was over Kennebunkport, Maine--Bush's favorite vacation spot.
Two months later NASA announced--on the back pages of the newspapers--that further research had shown there was no such damage. But it was too late. The valuable comodity known as Freon was gone forever.
Kyoto is crap and just a method of hammering the American Economy imho
To meet such drastically-reduced energy standards will--in the short run--cost the United States over one million jobs. Some estimate it will cost over seven million jobs in 14 years. If the treaty sends the economy into a tailspin, as many predict, it will cost even more jobs.
It will cost the average family $1,000 to $4,000 dollars per year in increased energy costs. The cost of food will skyrocket. It has been estimated that in order for the United States to meet such a goal, our gross domestic product will be reduced by $200 billion--annually.
To force down energy use, the Federal government will have to enforce a massive energy tax that will drive up the cost of heating your home by as much as 30 to 40 percent. In all likelihood there will be a tax on gasoline--as high as 60 cents per gallon. There will be consumption taxes and carbon taxes. The Department of Energy has estimated that electricity prices could rise 86 percent--and gasoline prices 53 percent.
Are you willing to pay these costs based on flawed science? remember that Olives grew in Germany long before the Industrial revolution.
SOURCE
[edit on 16-12-2004 by edsinger]
[edit on 13-2-2005 by John bull 1]
Originally posted by jimbo999
Sorry - but in my opinion - and going on the evidence of the last 7 years or so - any 'scientific enviromental' research emanating from the Bush government is highly susopect to begin with. The Bush administration has spend years trying to convince everyone that global warming is not occuring. Meanwhile - Rome burns...and California...
J.
Originally posted by melatonin
A lie with a purpose, eh?
What about the lie that volcanoes produce more CO2 than humans? That swindle documentary is a good example of purposeful lies. What about presenting obsolete and incorrect solar data to show a correlation between solar and climate that no longer exists?
Originally posted by melatonin
Essentially what you are stating is a logical fallacy. Just because temperature increases lead to a release of CO2, does not mean that CO2 cannot lead an increase in temperature. The phenomena is called a positive feedback, and unless you can change the law of physics, CO2 will remain a longwave absorber and contribute to the 'greenhouse' effect.