NASA Study Acknowledges Solar Cycle, Not Man, Responsible for Past Warming
Michael Andrews - June 4, 2009 9:37 AM
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.
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.
That sounds like what they teach in primary schools.
There isn't just one reason for global warming.
It's a multi faceted issue, and so are the problems that will arised from it. There isn't just one solution for it either.
Despite all things, i still think population growth is a much more dangerous problem than global warming. Humans can still move further inland when the sea level rise, but resource depletion from population growth will cripple human civilization.
Originally posted by Miracles&Prophecies:What is this thread doing in speaker corner?
Global warming seems to be a pretty valid political topic to discuss on.
Or are only threads talking about how the government is oppressing us the only ones that can exist here?
eco politics?
Nasa got no money liao, trying to sell bra again ar??
Solar energy is the way to go.
Use biodiesel for diesel engines.
Plant trees to cool the earth.
Originally posted by googoomuck:Solar energy is the way to go.
Use biodiesel for diesel engines.
Plant trees to cool the earth.
Arabs will be hunting you down