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Originally posted by Bob Sholtz
. does climate gate need to be brought up? that such a lack of evidence forced global warming scientists to fraudulently manipulate data?
Originally posted by lifeform11
so the issue for me is how do we get a unbiased debate on a national level in each country,
Originally posted by kimar
You global warming deniers are the flat-earthers of the modern era. You seem to think that humans can do whatever we want without consequences. Wake up and face the facts people!
Originally posted by syrinx high priest
so sad
wanna know the fun part ?
the sun is actually currently in a weak or low cycle linky
should be fun when it starts to heat up !
see kids, with all the greenhouse gasses in the air, we are seeing undeniable warming on this planet AND THE SUN IS IN A WEAK CYCLE !!!!!
deny ignorance indeed
Surprise In Earth's Upper Atmosphere: Mode Of Energy Transfer From The Solar Wind
www.sciencedaily.com
"Its like something else is heating the atmosphere besides the sun. This discovery is like finding it got hotter when the sun went down," said Larry Lyons, UCLA professor of atmospheric and oceanic sciences and a co-author of the research, which is in press in two companion papers in the Journal of Geophysical Research.
"We all have thought for our entire careers — I learned it as a graduate student — that this energy transfer rate is primarily controlled by the direction of the interplanetary magnetic field," Lyons said. "The closer to southward-pointing the magnetic field is, the stronger the energy transfer rate is, and the stronger the magnetic field is in that direction. If it is both southward and big, the energy transfer rate is even bigger."
However, Lyons, Kim and their colleagues analyzed radar data that measure the strength of the interaction by measuring flows in the ionosphere, the part of Earth's upper atmosphere ionized by solar radiation. The results surprised them.
"Any space physicist, including me, would have said a year ago there could not be substorms when the interplanetary magnetic field was staying northward, but that's wrong," Lyons said. "Generally, it's correct, but when you have a fluctuating interplanetary magnetic field, you can have substorms going off once per hour.
"Heejeong used detailed statistical analysis to prove this phenomenon is real. Convection in the magnetosphere and ionosphere can be strongly driven by these fluctuations, independent of the direction of the interplanetary magnetic field."
Space radiation hits record high
Now, the influx of galactic cosmic rays into our solar system has reached a record high. Measurements by NASA's Advanced Composition Explorer (ACE) spacecraft indicate that cosmic rays are 19 per cent more abundant than any previous level seen since space flight began a half century ago."The space era has so far experienced a time of relatively low cosmic ray activity," says Richard Mewaldt of Caltech, who is a member of the ACE team. "We may now be returning to levels typical of past centuries."
Title: Is the solar system entering a nearby interstellar cloud
Authors: Vidal-Madjar, A.; Laurent, C.; Bruston, P.; Audouze, J.
Affiliation: AA(CNRS, Laboratoire de Physique Stellaire et Planetaire, Verrieres-le-Buisson, Essonne, France), AB(CNRS, Laboratoire de Physique Stellaire et Planetaire, Verrieres-le-Buisson, Essonne, France), AC(CNRS, Laboratoire de Physique Stellaire et Planetaire, Verrieres-le-Buisson, Essonne, France), AD(Meudon Observatoire, Hauts-de-Seine; Paris XI, Universite, Orsay, Essonne, France)
Publication: Astrophysical Journal, Part 1, vol. 223, July 15, 1978, p. 589-600. (ApJ Homepage)
Publication Date: 07/1978
Category: Astrophysics
Origin: STI
NASA/STI Keywords: ASTRONOMICAL MODELS, DEUTERIUM, HYDROGEN ATOMS, INTERSTELLAR GAS, SOLAR SYSTEM, ABUNDANCE, EARLY STARS, GAS DENSITY, INTERSTELLAR EXTINCTION
Comment: A&AA ID. AAA021.131.209
DOI: 10.1086/156294
Bibliographic Code: 1978ApJ...223..589V
Observational arguments in favor of such a cloud are presented, and implications of the presence of a nearby cloud are discussed, including possible changes in terrestrial climate. It is suggested that the postulated interstellar cloud should encounter the solar system at some unspecified time in the near future and might have a drastic influence on terrestrial climate in the next 10,000 years.
Ribbon at Edge of Our Solar System: Will the Sun Enter a Million-Degree Cloud of Interstellar Gas?
ScienceDaily (May 24, 2010) — Is the Sun going to enter a million-degree galactic cloud of interstellar gas soon?
Scientists from the Space Research Centre of the Polish Academy of Sciences, Los Alamos National Laboratory, Southwest Research Institute, and Boston University suggest that the ribbon of enhanced emissions of energetic neutral atoms, discovered last year by the NASA Small Explorer satellite IBEX, could be explained by a geometric effect coming up because of the approach of the Sun to the boundary between the Local Cloud of interstellar gas and another cloud of a very hot gas called the Local Bubble. If this hypothesis is correct, IBEX is catching matter from a hot neighboring interstellar cloud, which the Sun might enter in a hundred years.
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The Sun traveling through the Galaxy happens to cross at the present time a blob of gas about ten light-years across, with a temperature of 6-7 thousand degrees kelvin. This so-called Local Interstellar Cloud is immersed in a much larger expanse of a million-degree hot gas, named the Local Bubble. The energetic neutral atoms (ENA) are generated by charge exchange at the interface between the two gaseous media. ENA can be observed provided the Sun is close enough to the interface. The apparent Ribbon of ENA discovered by the IBEX satellite can be explained by a geometric effect: one observes many more ENA by looking along a line-of-sight almost tangent to the interface than by looking in the perpendicular direction. (Credit: SRC/Tentaris,ACh/Maciej Frolow)
Our solar system may be headed for an encounter with a dense cloud of interstellar matter
Our solar system may be headed for an encounter with a dense cloud of interstellar matter–gas and dust–that could have substantial implications for our solar systems interplanetary environment, according to University of Chicago astrophysicist Priscilla Frisch. The good news is that it probably won’t happen for 50,000 years. Frisch presented the results of her research Monday, June 10, at the meeting of the American Astronomical Society in Madison, Wisc.
Frisch has been investigating the interstellar gas in the local neighborhood of our solar system, which is called the Local Interstellar Medium (LISM). This interstellar gas is within 100 light years of the Sun. The Sun has a trajectory through space, and for most of the last five million years, said Frisch, it has been moving through a region of space between the spiral arms of the Milky Way galaxy that is almost devoid of matter. Only recently, within the last few thousand years, she estimates, the Sun has been traveling through a relatively low-density interstellar cloud.
“This cloud, although low density on average, has a tremendous amount of structure to it,” Frisch said. “And it is not inconsistent with our data that the Sun may eventually encounter a portion of the cloud that is a million times denser than what we’re in now.”
Frisch believes the interstellar cloud through which we’re traveling is a relatively narrow band of dust and gas that lies in a superbubble shell expanding outward from an active star-formation region called the Scorpius-Centaurus Association. “When this superbubble expanded around these stars, it expanded much farther into the region of our galaxy between the spiral arms, where our sun lies, because the density is very low,” Frisch said. “It didn’t expand very far in the direction parallel to the spiral arms because it ran into very dense molecular clouds.”
...
Originally posted by littletheif203
I mean really, do you think that mankind has not had any impact on earth at all? I personally think that both sides are right. Earth has it cycles and right now it is on a warmer cycle and soon it will to start a cooler one, but to say that mankind is not responsible for some part is is just ridiculous.
Originally posted by mc_squared
This thread debunked in 3 graphs.
*yawn*
Science 26 September 1997:
Vol. 277. no. 5334, pp. 1963 - 1965
DOI: 10.1126/science.277.5334.1963
Prev | Table of Contents | Next
Reports
Total Solar Irradiance Trend During Solar Cycles 21 and 22
Richard C. Willson
Results from Active Cavity Radiometer Irradiance Monitor (ACRIM) experiments show an upward trend in total solar irradiance of 0.036 percent per decade between the minima of solar cycles 21 and 22. The trend follows the increasing solar activity of recent decades and, if sustained, could raise global temperatures. Trends of total solar irradiance near this rate have been implicated as causal factors in climate change on century to millennial time scales.
Earth Institute News Archive
posted 03/20/03
Researcher Finds Solar Trend That Can Warm Climate
Ends debate over whether sun can play a role in climate change
Since the late 1970s, the amount of solar radiation the sun emits during times of quiet sunspot activity has increased by nearly .05 percent per decade, according to the study. “This trend is important because, if sustained over many decades, it could cause significant climate change,” said Willson, a researcher affiliated with NASA Goddard Institute for Space Studies and the Earth Institute at Columbia University, and lead author of the study recently published in Geophysical Research Letters.
“Historical records of solar activity indicate that solar radiation has been increasing since the late 19th century,” says Willson. “If a trend comparable the one found in this study persisted during the 20th century it would have provided a significant component of the global warming that the Intergovernmental Panel on Climate Change report claims to have occurred over the last 100 years.”
Willson found errors in previous satellite data that had obscured the trend. The new analysis, Willson says, should put an end to a debate in the field over whether solar irradiance variability can play a significant role in climate change.
The solar cycle occurs approximately every 11 years when the sun undergoes a period of increased magnetic and sunspot activity called the "solar maximum," followed by a quiet period called the "solar minimum." A trend in the average solar radiation level over many solar magnetic cycles would contribute to climate change in a major way. Satellite observations of total solar irradiance have now obtained a long enough record (over 24 years) to begin looking for this effect.
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In order to investigate the possibility of a solar trend, Willson needed to put together a long-term dataset of the Sun’s total output. Six overlapping satellite experiments have monitored TSI since late 1978.The first record came from the National Oceanic and Atmospheric Administration’s (NOAA) Nimbus7 Earth Radiation Budget (ERB) experiment (1978-1993). Other records came from NASA’s Active Cavity Radiometer Irradiance Monitors: ACRIM1 on the Solar Maximum Mission (1980-1989), ACRIM2 on the Upper Atmosphere Research Satellite (1991-2001) and ACRIM3 on the ACRIMSAT satellite (2000 to present). Also, NASA launched its own Earth Radiation Budget Experiment on its Earth Radiation Budget Satellite (ERBS) in 1984. And, the European Space Agency’s (ESA) SOHO/VIRGO experiment also provided an independent data set during 1996-1998.
In this study, Willson, who is also Principal Investigator of the ACRIM experiments, compiled a TSI record of over 24 years by carefully piecing together the overlapping records. In order to construct a long-term dataset, Willson needed to bridge a two-year gap (1989-1991) between ACRIM1 and ACRIM2. Both the Nimbus7/ERB and ERBS measurements overlapped the ACRIM ‘gap.’ Using Nimbus7/ERB results produced a 0.05 percent per decade upward trend between solar minima, while ERBS results produced no trend. Until this study, the cause of this difference, and hence the validity of the TSI trend, was uncertain. Now, Willson has identified specific errors in the ERBS data responsible for the difference. The accurate long-term dataset therefore shows a significant positive trend (.05 percent per decade) in TSI between the solar minima of solar cycles 21 to 23 (1978 to present).
Although not documented here, it is interesting to note that the overall level of magnetic disturbance from year to year has increased substantially from a low around 1900 Also, the level of mean yearly aa is now much higher so that a year of minimum magnetic disturbances now is typically more disturbed than years at maximum disturbance levels before 1900.
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