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See www.appinsys.com... for more info on Hansen’s data manipulations.
The following figures show a more recent example of the GISS re-adjustment of data (from: Bob Tisdale at i44.tinypic.com...). The 2000 and 2009 versions of the GISTEMP data are compared. This shows the additional artificial warming trend created through data adjustments.
Since 2000, NASA has further “cleaned” the historical record. The following graph shows the further warming adjustments made to the data in 2005. (The data can be downloaded at data.giss.nasa.gov...; the following graph is from www.theregister.co.uk...). This figure plots the difference between the 2000 adjusted data and the 2005 adjusted data. Although the 2000 to 2005 adjustment differences are not as large as the 1999 to 2000 adjustment differences shown above, they add additional warming to the trend throughout the historical record.
Doran PT, Priscu JC, Lyons WB, Walsh JE, Fountain AG, McKnight DM, Moorhead DL, Virginia RA, Wall DH, Clow GD, Fritsen CH, McKay CP, Parson AN, 2002, Antartic climate cooling and terrestial ecosystem response, nature 415: 517-20
From 1986 to 2000 central Antartic valleys cooled .7° C per decade with serious ecosystem damage from cold.
Joughin I, Tulaczyk S, 2002, Positive mass balance of the Ross Ice streams, West Antartica, Science 295: 476-80
Side-looking radar measurements show West Antartica ice is increasing at 26.8 gigatons/yr. Reversing the melting trend of the las 6,000 years.
Petit JR, Jouzel J, Raynaud D, Barkov NI, Barnola J-M, Basile I, Bender M, Chappellaz J, Davis M, Delaygue G, Delmotte M, Kotlyakov VM, Legrand M, Lipenkov VY, Lorius C, Pepin L, Ritz C, Saltzman E, Stievenard M, 1999, Climate and atmospheric history of the past 420,000 years from the Vostok ice core, Antartica, Nature 399: 429-36
During the last four interglacials, going back 420,000 years, the Earth was warmer than it is today.
Parkinson CL, 2002, Trends in the lenght of the southern Ocean sea-ice season, 1979-99, Annals of Glaciology 34: 435-40
The greater part of Antartica experiences a longer sea-ice season, lasting 21 days longer than it did in 1979.
Originally posted by swan001
So, we all heard of this Global Warming thing. Did you know - fun fact here - that in the 70s, the big news was about Global Cooling and not Global Warming? Interrestingly enough, the Big Media was promoting Global Cooling theory to scare us into abandonning our culture and technologies.
Originally posted by inverslyproportional
reply to post by swan001
Star and flag OP, but you forgot to mention how al gore was first a champion of global cooling, then global warming.
Or how he has every light in his house on during earth hour that he sponsors( you know where we are all suppossed to turn off all the power for an hour to make a symbolic gesture of saving the world).
Or how is constantly tells us "little people" how we are terrible people destroying the world b driving 4 cylinder cars, yet he takes his personal jumbo jet everywhere, spewing more C02 in a day than most will in a life.
Other than that, spot on OP, well done.
Originally posted by swan001
Wait. Remember how CO2 deflects Infrared rays? And that more CO2 means a better reflexion? Look at Venus. The reason you see it so bright is because she has so much volcanic CO2 in her atmosphere, it litterally mirrors light from the sun back to space - that's called albedo. Well, does anyone see what's being measured by satellite orbiting around Earth? Satellite sensors are monitoring the amount of heat... which has been reflected away from Earth, back to space, due to Earth's growing CO2 layer! CO2 is slowly insulating Earth from sun's infrared rays, reflecting them back to space (where the satellites wait), instead of letting Earth absorbing them! The amount detected by the satellites is not the temperature of Earth's surface (which is under the CO2 layer - Earth is insulated by CO2, remember? That means sattelites in space can't read past it), it's the amount of heat which has been deflected back to space, due to the CO2, and it's growing! We are really undergoing Global Cooling, and it's confirmed by the sattelite records of deflected heat! And that is, also, confirmed by polar ice sheets high-precision measurements. The amount of ice is steadily growing in Antartica.
Originally posted by swan001
CO2 lets visible light pass right through it, but not lower spectrum frequencies (including infrared). Now, Global Warming states that IR can pass right through CO2 layer in the first place, but then when it is reflected by Earth's surface, it can't pass right through CO2 (back toward space) layer anymore.
No, what I'm saying is quite simpler. You have a net energy flux into the Earth (you must, or else you wouldn't be able to see anything). This will tend to heat the earth, which can be demonstrated by simple thermodynamic relationships. The earth, in turn, radiates in IR as all warm things do. The CO2 blocks this radiation from escaping into space, essentially acting as a blanket.
Another way to think about it is that it isn't only the "dark spots" which absorb visible light; anything that isn't pure white is absorbing some portion of the electromagnetic spectrum. As a result, it will heat up.
Originally posted by swan001
Now, on a less scientific point of view: If Earth is really warming so bad, how come
-today's politicians (who are supposedly funded by Oil Industries according to Gore) are promoting Global Warming theory and did not censored the media for it
-New York started receiving heavy snow
-Quebec broke the record of its earliest snowfall since eons
-It started snowing in Alberta in the middle of summer
-Last year a portion of Europe (I think it was around Varsovia) received so much snow the authorities had to dig walls through it or else people couldn't pass?
-Graphs show a drop of heat in satelite's sensors, and that's worldwide (remember how Al Gore, to show us the predicted warming we would get, took his little machine and rose a couple of feet from the ground to point at a ludicrously high temprature? Why did worldwide temperatures drop instead? )
-Enonomical figures, like Lord Rothschild, are pushing a new economical currency - that's the reason for the controlled collapse of American, European and Iranian economy - which present disturbing similarities with this new Carbon Tax? Why does it look like the elite is promoting Global Warming to monopolize economy and put more money in their pockets?
-Although we are in an interglaciary state, we are much cooler than when we were in the last interglaciary state (and in which humans were numbered to thousands only)? Why is it that more human CO2 didn't make a warmer planet than no human CO2?
-Why climatologists don't listen to astronomers when astronomers point out that going in the Rift might cause an Ice Age like it already did four times before - an Ice Age! That means a growth in worldwide glaciers! A potential threat to mankind, that, for now, only astronomers had the guts to assess. I feel that mainstream climatology is blinding itself from the rest of sciences, and that its allegiance is not to the truth anymore but to political
Several independent observations can be applied to confirm the reliability of global glacier volume changes.
First, the general trend in volume change and variability are close to those of previously calculated and published results (Dyurgerov and Meier, 1997a, 1997b; Warrick et al., 1996; Dyurgerov, 2002).
Second, very pronounced peaks in the globally averaged annual mass balance time series curve are found in connection with the strongest explosive volcanic eruptions, in particular Mount Agung in 1963, El Chichon in 1982, and Mount Pinatubo in 1991 (see Fig. 5), with cooling and positive mass balance found regionally and globally for the following 1–3 years (Abdalati and Steffen, 1997; Dyurgerov and Meier, 2000).
Third, the warmest years in the late 1980s and 1990s correspond to the most negative mass balances and acceleration of glacier volume losses (Fig. 5).
Fourth, the acceleration of glacier volume change presented here shows a consistency with other global changes in the Cryosphere, reduction of sea-ice area and thickness (Laxon et al., 2004), increasing temperature in permafrost and permafrost thawing, acceleration of movement and disintegration of polar ice caps, and outlet and tidewater glaciers in Greenland and Antarctic (Scambos et al., 2000; Zwally et al., 2002; Rau et al., 2004; Rignot et al., 2003; Thomas, 2004).