Can the sun be blamed in any way for global warming ?
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According to scientists ,the rise in global temperatures which has been detected in the past two decades ,cannot be blamed on the sun .
the british and swiss researchers looked at the data for radiation from the sun as the sun radiation levels are responsible for either warming or cooling of our earth atmosphere .
Thereafter ,the researcher came to the conclusion that the sun had been less active since 1985,although global temperature have continued to rise.
in fact ,in the past two decades ,all the things in thevsun which could have had an influon tje earth's climate ,have must been the opposite to that which is required to explain the detected rise in the globamean temperature .
So the overwhelming agreement aming scientists is that human activities and not the sun , are responsible for the rise in global temperatures .
The level of carbon dioxide gas in the atmosphere ,the main greenhouse gas,have risen a lot since the industrial revolution and are now at their highest .Eleven of the past 12 years are among the dozen warmest year on record .
manishnavik1
______________________________
According to scientists ,the rise in global temperatures which has been detected in the past two decades ,cannot be blamed on the sun .
the british and swiss researchers looked at the data for radiation from the sun as the sun radiation levels are responsible for either warming or cooling of our earth atmosphere .
Thereafter ,the researcher came to the conclusion that the sun had been less active since 1985,although global temperature have continued to rise.
in fact ,in the past two decades ,all the things in thevsun which could have had an influon tje earth's climate ,have must been the opposite to that which is required to explain the detected rise in the globamean temperature .
So the overwhelming agreement aming scientists is that human activities and not the sun , are responsible for the rise in global temperatures .
The level of carbon dioxide gas in the atmosphere ,the main greenhouse gas,have risen a lot since the industrial revolution and are now at their highest .Eleven of the past 12 years are among the dozen warmest year on record .
manishnavik1
Answered by
1
@
Experts in solar science, climate modeling and atmospheric science met in Boston at the annual meeting of the American Association for the Advancement of Science to discuss the possible link between variability in solar energy output and global warming here on Earth.
We do know that that our sun is a variable star: "It varies by about one-tenth of one percent" in energy output, according to David H. Hathaway, a sunspot specialist from NASA's Marshall Space Flight Center in Hunstville, Alabama. But that doesn't seem enough to explain observed climate change. In fact, according to Casper M. Ammann, a climate modeler at the National Center for Atmospheric Research in Boulder, Colorado, in the years since 1950, "there is no observed trend in solar radiation. The 11-year sunspot cycle has not been significantly abnormal."
In essence, he added, it's now very clear that the atmospheric changes being seen now — global warming — "have nothing to do with changes in solar activity. It's greenhouse gases. It's not the sun that is causing this [climate] trend."
The Earth's atmosphere — and its relationship to the sun's energy output — is so complex that even as warming began, "up until 1960 we couldn't see it." But now, he said, since warming has been confirmed, the world's climate scientists "are probably not overestimating the problem. It's probably worse than the estimates."
@:-)
Experts in solar science, climate modeling and atmospheric science met in Boston at the annual meeting of the American Association for the Advancement of Science to discuss the possible link between variability in solar energy output and global warming here on Earth.
We do know that that our sun is a variable star: "It varies by about one-tenth of one percent" in energy output, according to David H. Hathaway, a sunspot specialist from NASA's Marshall Space Flight Center in Hunstville, Alabama. But that doesn't seem enough to explain observed climate change. In fact, according to Casper M. Ammann, a climate modeler at the National Center for Atmospheric Research in Boulder, Colorado, in the years since 1950, "there is no observed trend in solar radiation. The 11-year sunspot cycle has not been significantly abnormal."
In essence, he added, it's now very clear that the atmospheric changes being seen now — global warming — "have nothing to do with changes in solar activity. It's greenhouse gases. It's not the sun that is causing this [climate] trend."
The Earth's atmosphere — and its relationship to the sun's energy output — is so complex that even as warming began, "up until 1960 we couldn't see it." But now, he said, since warming has been confirmed, the world's climate scientists "are probably not overestimating the problem. It's probably worse than the estimates."
@:-)
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