NASA Study Acknowledges Solar Cycle, Not Man, Responsible for Past Warming
Report indicates solar cycle has been impacting Earth since the Industrial Revolution
(h/t Stand Firm)
Michael Andrews
June 4, 2009
Some researchers believe that the solar cycle influences global climate changes. They attribute recent warming trends to cyclic variation. Skeptics, though, argue that there's little hard evidence of a solar hand in recent climate changes.Now, a new research report from a surprising source may help to lay this skepticism to rest.
A study from NASA’s Goddard Space Flight Center in Greenbelt, Maryland looking at climate data over the past century has concluded that solar variation has made a significant impact on the Earth's climate. The report concludes that evidence for climate changes based on solar radiation can be traced back as far as the Industrial Revolution. the rest
posted by Pat Dague @ 8:38 AM
2 comments
2 Comments:
If you read the actual NASA report, it doesn't claim that the sun is responsible for current global warming, quite the opposite. What it does find it the 11 year solar cycle has an effect on global temperatures of about 0.1 degrees Celsius. Eg - as we move from solar maximum to solar minimum, global temperatures fall about 0.1 degrees. At the moment, for instance, we are at solar minimum which is why the global warming trend has slowed since solar maximum in 2001.
Most important to the global warming debate, the sun has shown no long term warming trend since the 1950's has also been known for years. This is why so many studies have concluded that the sun's contribution to global warming over the past 30 years has been minimal. If anything, the sun has been slightly cooling.
And if YOU checked your statistics, you would see the average mean temp is now falling. How is that global warming ?
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