backtop


Print 148 comment(s) - last by pvandyke.. on Jun 16 at 5:52 PM


Past studies have shown that sunspot numbers correspond to warming or cooling trends. The twentieth century has featured heightened activity, indicating a warming trend.  (Source: Wikimedia Commons)

Solar activity has shown a major spike in the twentieth century, corresponding to global warming. This cyclic variation was acknowledged by a recent NASA study, which reviewed a great deal of past climate data.  (Source: Wikimedia Commons)
Report indicates solar cycle has been impacting Earth since the Industrial Revolution

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.

Past research has shown that the sun goes through eleven year cycles.  At the cycle's peak, solar activity occurring near sunspots is particularly intense, basking the Earth in solar heat.  According to Robert Cahalan, a climatologist at the Goddard Space Flight Center, "Right now, we are in between major ice ages, in a period that has been called the Holocene."

Thomas Woods, solar scientist at the University of Colorado in Boulder concludes, "The fluctuations in the solar cycle impacts Earth's global temperature by about 0.1 degree Celsius, slightly hotter during solar maximum and cooler during solar minimum.  The sun is currently at its minimum, and the next solar maximum is expected in 2012."

According to the study, during periods of solar quiet, 1,361 watts per square meter of solar energy reaches Earth's outermost atmosphere.  Periods of more intense activity brought 1.4 watts per square meter (0.1 percent) more energy.

While the NASA study acknowledged the sun's influence on warming and cooling patterns, it then went badly off the tracks.  Ignoring its own evidence, it returned to an argument that man had replaced the sun as the cause current warming patterns.  Like many studies, this conclusion was based less on hard data and more on questionable correlations and inaccurate modeling techniques.

The inconvertible fact, here is that even NASA's own study acknowledges that solar variation has caused climate change in the past.  And even the study's members, mostly ardent supports of AGW theory, acknowledge that the sun may play a significant role in future climate changes.



Comments     Threshold


This article is over a month old, voting and posting comments is disabled

RE: Math???
By OrSin on 6/4/2009 8:04:58 PM , Rating: 4
Yes huge math errors. Obama spend 37 billon of the tarp money bush spent 400 billion of it. Obama programs are set to spend .9 trillion but have only spent $110 billion so far. That means bush spend over $400 in his last 6 months and Obama has spend less then $150 in only 6 months. And have not even added in the Iraq war that is project to cost tax payers 3-5 trillion.

Damn people can really pervert numbers.


RE: Math???
By theapparition on 6/4/2009 8:16:51 PM , Rating: 2
If you really want to get technical, the president can't spend a dime.
However, you can point a finger square at Congress. And Congressional Democrats are to blame.


RE: Math???
By jimbojimbo on 6/5/2009 2:20:03 PM , Rating: 2
And all those suckers that voted all of them in.


“So far we have not seen a single Android device that does not infringe on our patents." -- Microsoft General Counsel Brad Smith

Related Articles
















botimage
Copyright 2014 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki