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Maybe the same aliens who created humankind (if I.D. is correct) are causing the global warming? Maybe they have some sort of machine. If they can create humans, they can certainly heat up the earth.
The article you cite studies the Sun over a 25 year period what a joke. The Sun as a process wil have a life span of over 5 billion year trying to use a 35 year slice to determine it's impact is silly. We can however look at sunspot acticity over a 400-500 period and see that periods of decreased activity are connected with lower temps on earth and periods of increased activity correlate quite well with increasing temps. The sunsport lead cliomate change as opposed to Co2 levels which lag temp changes.
Gotta do better than that Patters, here are some peer reviewed papers that may be of interest.
Space weather may also in the long term affect the Earth's climate. Solar ultra-violet, visible and heat radiation are the primary factors for the Earth's climate, including global average temperatures, and these energy sources appear to be quite constant. However, many scientists have observed corrrelations between the solar magnetic activity, which is reflected in the sunspot frequency, and climate parameters at the Earth. Sunspots has been recorded through several hundreds of years which makes it possible to compare their variable frequency to climate variations to the extent that reliable climatological records exists. One of the most striking comparisons was published by E. Friis-Christensen og K. Lassen, DMI, in "Science" in 1991. In their work they compared the average temperatureat the northern hemisphere with the average solar activity defined through the interval between successive sunspot maxima. The more active the sun - the shorter the interval: the solar cycle runs more intense. Their results are displayed in the figure below:
The red curve illustrates the solar activity, which is generally
increasing through an interval of 100 years, since the cycle length
has decreased from around 11.5 years to less than 10 years. Within
the same interval the Earth's average temperature as indicated by
the blue curve has increased by approximately 0.7 degree C. Even
the finer structures in the two curves have similar appearances.
(Reference: Friis-Christensen, E., and K. Lassen, Length of the solar
cycle: An indicator of solar activity closely associated with climate,
Science, 254, 698-700, 1991).
from another study of seabed sediments
Letís look now at another source that seems to confirm the 1,500-year climate cycle: seabed sediments.
Gerard Bond of Columbia Universityís Lamont-Doherty Earth Observatory analyzed sediments on the floor of the southern North Atlantic. Roughly every 1,500 years, there was a surge in the amount of rocky debris picked up by the glaciers as they ground their way across eastern Canada and Greenland. This ice-rafted debris was then floated much farther south before the icebergs melted and it dropped to the sea floor. Both the increase in the volume of the debris and its floating much farther south indicated severe cold periods.
Bond found nine of these cycles in the last 12,000 years, and they matched those in the cores from the Greenland Ice Sheet and the Vostok Antarctic glacier ó again strengthening our confidence that the cycles are real and significant.
The cycle of sunlight intensity roughly follows a 1,500-year pattern, based on analysis of the past 12,000 years. But the difference from the top of the cycle to the bottom is very small, with less than a 0.1 percent difference in energy levels, he said.
Bond and his colleagues believe this is enough to trigger severe climate changes, such as the Little Ice Age, a 490-year period starting in 1400 that dramatically chilled Europe and the North Atlantic.
``The climate system is extremely sensitive to weak forces, such as solar variability,'' Bond said. ``That should make us that much more worried about greenhouse warming.''
Greenhouse warming is thought to be caused by an increase in the atmosphere of carbon dioxide from the burning of fossil fuels, including oil, gas and coal.
The study is an effort to determine if small changes in sunlight over centuries can cause the Earth's climate to warm or cool. Other experts working on the same problem said Bond and his team have made a strong case.
``It shows that the connection is real,'' Jeffrey Park of Yale University said in Science. To David Thomson of Queen's University in Ontario, Canada, it seems like ``a fairly convincing case.''
"Some guys play in all-star games, some guys don't. I don't know who picks all those all-star teams. In all honesty, I don't know who picks the combine, for that matter," Belichick said. "How does (Miami-Ohio offensive lineman Brandon) Brooks not get invited to the combine? How did Vollmer not get invited to the combine? I don't know. We can't really worry about that. We just have to try to evaluate them the best we can."
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