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Originally posted by ElectricUniverse
See?... this is the sort of crap that you people keep doing...you don't do any research on the subject and when you don't know something you claim it is not true, or you just deny it because it refutes your religious crap...
Studies at the Max Planck Institute for Solar System Research reveal: solar activity affects the climate but plays only a minor role in the current global warming.
Although the inferred increase of solar irradiance in 24 years, about 0.1 percent, is not enough to cause notable climate change, the trend would be important if maintained for a century or more.
Over the past century, Earth's average temperature has increased by approximately 0.6 degrees Celsius (1.1 degrees Fahrenheit). Solar heating accounts for about 0.15 C, or 25 percent, of this change
Originally posted by daddymax
as every planet in the solar system is warming and causing atmospheric changes, how would paying a cap and trade tax(as I cannot/will not buy the carbon credits) change the verifiable results
please advise
We observed a stellar occultation of the star U149 by Uranus from Lowell Observatory and the IRTF on Mauna Kea on November 6, 1998. The temperatures derived from isothermal fits to the Lowell lightcurves are 116.7 § 7.9 K for immersion, and 124.8 § 15.5 K for emersion. The secular increase in temperature seen during the period 1977–1983 has reversed. Furthermore, the rate of decrease (¸1.2 K/yr) cannot be explained solely by radiative cooling. Although the temperature structure of Uranus’ upper atmosphere may be related to seasonal effects (e.g., the subsolar latitude) or local conditions (e.g., diurnally averaged insolation), these observations suggest nonradiative influences on the temperature, such as adiabatic heating/cooling or thermal conduction.
Originally posted by muzzleflash
How are we on the side of the globalists, when we are clearly opposing the globalist agenda?
Al GORE = BIG OIL
Originally posted by mc_squared
Although the inferred increase of solar irradiance in 24 years, about 0.1 percent, is not enough to cause notable climate change, the trend would be important if maintained for a century or more.
So in other words - yes solar irradiance was still increasing after the 70's - but the increase was too minor (~0.05% per decade) to account for the relatively massive increase we've experienced in global temperatures during that time. In case you want to hear it from NASA themselves be my guest:
Originally posted by DeathShield
reply to post by mc_squared
You know it would be really nice if your posts consisted of something more than " NO UR WRONG!" and " UR BRAINWASHED LOL" " RIGHT WING SCHILLS!"
Originally posted by mc_squared
Originally posted by bigyin
reply to post by mc_squared
I don't need educating. I have listened to experts telling me sea levels will rise for the past 40 years.
They havn't risen at all, so thats a lie.
Yeah you're right - you don't need educating.
Because you have already made up your mind.
And no matter how misinformed you may be you clearly don't need anyone bothering you with annoying things like facts or the truth.
Good luck in life bigyin.
Current sea level rise has occurred at a mean rate of 1.8 mm per year for the past century, and more recently at rates estimated near 2.8 ± 0.4 to 3.1 ± 0.7 mm per year (1993-2003).
en.wikipedia.org...
Originally posted by mc_squared
Yeah I bottomed out at 10% because I was worried if I mentioned the downward estimates I'd get more misinterpreted articles thrown at me about "the Sun being the cause of global warming"
Recent oppositely directed trends in solar climate forcings and the global mean surface air temperature. II. Different reconstructions of the total solar irradiance variation and dependence on response time scale
Mike Lockwood1,2* and Claus Fröhlich3
+ Author Affiliations
1Space Environment Physics Group, School of Physics and Astronomy, University of Southampton Southampton SO17 1BJ, Hampshire, UK
2Rutherford Appleton Laboratory Chilton OX11 0QX, Oxfordshire, UK
3Physikalisch-Meteorologisches Observatorium Davos, World Radiation Center 7260 Davos Dorf, Switzerland
Author and address for correspondence: Rutherford Appleton Laboratory, Chilton OX11 0QX, Oxfordshire, UK ([email protected])
Abstract
We have previously placed the solar contribution to recent global warming in context using observations and without recourse to climate models. It was shown that all solar forcings of climate have declined since 1987. The present paper extends that analysis to include the effects of the various time constants with which the Earth's climate system might react to solar forcing. The solar input waveform over the past 100 years is defined using observed and inferred galactic cosmic ray fluxes, valid for either a direct effect of cosmic rays on climate or an effect via their known correlation with total solar irradiance (TSI), or for a combination of the two. The implications, and the relative merits, of the various TSI composite data series are discussed and independent tests reveal that the PMOD composite used in our previous paper is the most realistic. Use of the ACRIM composite, which shows a rise in TSI over recent decades, is shown to be inconsistent with most published evidence for solar influences on pre-industrial climate. The conclusions of our previous paper, that solar forcing has declined over the past 20 years while surface air temperatures have continued to rise, are shown to apply for the full range of potential time constants for the climate response to the variations in the solar forcings.
ACRIM-gap and total solar irradiance revisited: Is there a secular trend between 1986 and 1996?
ACRIM-gap and total solar irradiance revisited: Is there a secular trend between 1986 and 1996?
N. A. Krivova
Max Planck Institut für Sonnensystemforschung, Katlenburg-Lindau, Germany
S. K. Solanki
Max Planck Institut für Sonnensystemforschung, Katlenburg-Lindau, Germany
School of Space Research, Kyung Hee University, Yongin, South Korea
T. Wenzler
Max Planck Institut für Sonnensystemforschung, Katlenburg-Lindau, Germany
Hochschule für Technik Zürich, Zurich, Switzerland
A gap in the total solar irradiance (TSI) measurements between ACRIM-1 and ACRIM-2 led to the ongoing debate on the presence or not of a secular trend between the minima preceding cycles 22 (in 1986) and 23 (1996). It was recently proposed to use the SATIRE model of solar irradiance variations to bridge this gap. When doing this, it is important to use the appropriate SATIRE-based reconstruction, which we do here, employing a reconstruction based on magnetograms. The accuracy of this model on months to years timescales is significantly higher than that of a model developed for long-term reconstructions used by the ACRIM team for such an analysis. The constructed ‘mixed’ ACRIM — SATIRE composite shows no increase in the TSI from 1986 to 1996, in contrast to the ACRIM TSI composite.
Benestad, R.E., and G.A. Schmidt, 2009: Solar trends and global warming. J. Geophys. Res., 114, D14101, doi:10.1029/2008JD011639.
We use a suite of global climate model simulations for the 20th Century to assess the contribution of solar forcing to the past trends in the global mean temperature. In particular we examine how robust different published methodologies are at detecting and attributing solar-related climate change in the presence of intrinsic climate variability and multiple forcings. We demonstrate that naive application of linear analytical methods such as regression gives non-robust results. We also demonstrate that the methodologies used in Scafetta & West [2005, 2006a, b, 2007, 2008] are not robust to these same factors and that their error bars are significantly larger than reported. Our analysis shows that the most likely contribution from solar forcing a global warming is 7±1% for the 20th Century, and is negligible for the warming since 1980.
Originally posted by melatonin
You keep conflating weather and climate, and also building strawmen. Climate projections aren't trying to tell us whether it will rain on the first wednesday in july 2100, but, say, how warm the earth could well be on average in the 2100s if x, y, and z.
Different kettle of fish.
As Europe, Asia and North America froze last week, conventional wisdom insisted that this was merely a ‘blip’ of no long-term significance.
Though record lows were experienced as far south as Cuba, where the daily maximum on beaches normally used for winter bathing was just 4.5C, the BBC assured viewers that the big chill was merely short-term ‘weather’ that had nothing to do with ‘climate’, which was still warming.
The bitter winter afflicting much of the Northern Hemisphere is only the start of a global trend towards cooler weather that is likely to last for 20 or 30 years, say some of the world’s most eminent climate scientists.
Their predictions – based on an analysis of natural cycles in water temperatures in the Pacific and Atlantic oceans – challenge some of the global warming orthodoxy’s most deeply cherished beliefs, such as the claim that the North Pole will be free of ice in
summer by 2013.
According to the US National Snow and Ice Data Centre in Colorado, Arctic summer sea ice has increased by 409,000 square miles, or 26 per cent, since 2007 – and even the most committed global warming activists do not dispute this.
However, according to Prof Latif and his colleagues, this in turn relates to much longer-term shifts – what are known as the Pacific and Atlantic ‘multi-decadal oscillations’ (MDOs).
For Europe, the crucial factor here is the temperature of the water in the middle of the North Atlantic, now several degrees below its average when the world was still warming.
But the effects are not confined to the Northern Hemisphere. Prof Anastasios Tsonis, head of the University of Wisconsin Atmospheric Sciences Group, has recently shown that these MDOs move together in a synchronised way across the globe, abruptly flipping the world’s climate from a ‘warm mode’ to a ‘cold mode’ and back again in 20 to 30-year cycles.
'They amount to massive rearrangements in the dominant patterns of the weather,’ he said yesterday, ‘and their shifts explain all the major changes in world temperatures during the 20th and 21st Centuries.
'We have such a change now and can therefore expect 20 or 30 years of cooler temperatures.’
Like Prof. Latif, Prof Tsonis is not a climate change ‘denier’. There is, he said, a measure of additional ‘background’ warming due to human activity and greenhouse gases that runs across the MDO cycles.
But he added: ‘I do not believe in catastrophe theories. Man-made warming is balanced by the natural cycles, and I do not trust the computer models which state that if CO2 reaches a particular level then temperatures and sea levels will rise by a given amount.
'These models cannot be trusted to predict the weather for a week, yet they are running them to give readings for 100 years.’
Prof Tsonis said that when he published his work in the highly respected journal Geophysical Research Letters, he was deluged with ‘hate emails’.
He added: ‘People were accusing me of wanting to destroy the climate, yet all I’m interested in is the truth.’
He said he also received hate mail from climate change sceptics, accusing him of not going far enough to attack the theory of man-made warming.
The work of Profs Latif, Tsonis and their teams raises a crucial question: If some of the late 20th Century warming was caused not by carbon dioxide but by MDOs, then how much?
Tsonis did not give a figure; Latif suggested it could be anything between ten and 50 per cent.