Spooky
twisty turny thing
Registered: Jul 2000
Location:
Posts: 7236 |
quote:
Originally posted by David Lee Roth:
Global Warming is bull shit(e)Left wing propaganda, brought to you by the same folks who conjured up the vast right wing conspiracy.
Actually that is where you are wrong. Research, published yesterday in the journal Nature, compares data gathered in 1970 by an orbiting US satellite with data collected in 1997 by a Japanese satellite. Both measured solar radiation reflected by the Earth's surface and atmosphere – a measure of the greenhouse effect.
Critics of the global warming theory argue that much research relies on theoretical assumptions built into computer models. But the latest findings provide hard evidence that the global climate is changing due to higher levels of CO2 and other man-made pollutants.
The scientists, led by Professor John Harries of Imperial College, London, found that over the past 30 years the ability of greenhouse gases, notably CO2, to trap the Sun's heat has increased measurably, possibly because greenhouse gases have increased over that time.
Although the scientists are confident that they have measured the worsening greenhouse effect, they admit that the data fall short of definitive proof that it is the result of increases in man-made pollutants.
"But it does make [the proposition] stronger," said Helen Brindley, one of the researchers. "We're not saying we've found human influences on global warming but we think we can see human effects on radiative emissions into space from Earth.".
"We have shown that greenhouse gases themselves have directly contributed to the decrease in radiative emissions into space. You'd expect to see a temperature response in some way – the heat is remaining in the Earth's atmosphere," Dr Brindley said.
The research was only made possible by the recent rediscovery of the 1970 data – stored on ancient computer tapes in a cupboard at the Jet Propulsion Laboratory in California, part of Nasa, operators of the Nimbus climate satellite launched in 1970. Instruments measuring the spectra of light radiating from the Earth provided a unique signature of the role played by greenhouse gases now and 30 years ago, according to Professor Harries.
"These unique satellite spectrometer data collected 27 years apart show for the first time that real spectra differences have been observed and that they can be attributed to changes in greenhouse gases over a long time," he said.
The scientists eliminated the possibility of instrument defects causing differences in the two sets of data, or the influence of cloud cover at the time measurements were taken.
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sp00ky
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Disclaimer
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I am not expecting to change anything by this post other than awareness. Please do not take anything I say as fact, I am only relaying opinon of limited sources, who themselves know nothing and thus should also be ignored as heresay and could never be admissable in a court of law.
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03-15-2001 12:47 PM
