Are Climate Changes Linked To A Hotter Sun?
By James Donahue
While world scientists have been zeroing
in on the gasses from burning carbon fuels as a major cause of the dramatic climate changes slamming our planet, some physicists
say some of the blame may be coming directly from our sun.
That burning ball in the sky is doing some
strange things and people who study it say it appears to be burning hotter than it used to. They also say this may be a natural
cycle and that it has all happened before.
For instance, NASA’s Mars satellites
and rovers have determined that carbon dioxide “ice caps” on that planet are diminishing and the planet appears
to be warming even as Earth is warming and losing its ice caps. This suggests a general heating is occurring throughout the
solar system, not just on planet Earth.
And Dr. Bruce West, in a report published
in a 2008 issue of Physics Today, argued that “changes in the earth’s average surface temperature are directly
linked to . . . the short-term statistical fluctuations in the Sun’s irradiance and the longer-term solar cycles.”
West, the chief scientists of the Army Research
Offices’s mathematical and information science directorate, said he believed “the Sun’s turbulent dynamics”
are linked with the Earth’s complex ecosystem and that this is what is causing the planet to warm. He wrote that “the
Sun could account for as much as 69 percent of the increase in Earth’s average temperature.”
West found himself alone and rowing upstream
with one oar on that report, in spite of the scientific thought that obviously went into it. Since Al Gore’s documentary
pointing to industrial and automobile emissions and other human activities as a primary cause of climate change, most other
scientific organizations have jumped on this bandwagon. There has been a global movement for the control of carbon emissions
and repair of a planet stripped of its natural forests and ravaged environment.
Most world scientists agree that the evidence
for human modification of climate is compelling. World leaders are calling for laws controlling carbon emissions that will
reduce the amount of greenhouse gasses in the atmosphere and the rush is on to find alternative energy sources to meet the
world’s growing demands.
Henrik Svensmark of the Danish National Space
Center and Nigel Calder also ruffled feathers in 2007 when they published their book The Chilling Stars: A New Theory of Climate
Change.” They proposed that cosmic rays from the Sun have more of an effect on climate than human activity.
Their theory, in a nutshell, is that during
the last century cosmic rays were reduced by vigorous action by the Sun. Fewer cosmic rays meant fewer clouds on Earth, and
consequently a warmer world. The book became the centerpiece for a controversial documentary film that countered the Gore
film, titled The Great Global Warming Swindle.
A team of UK scientists conducted an extended study of this theory
and found no significant link between cosmic rays and cloudiness.