I know that it is both case 1 and 2. What I do not know is if it is 50/50 1/99 or 99/1 or something different.
There is scientific data that seems to support for the following statements:
The number/size of sun spots on the sun is affecting the weather on the earth (ie. more clouds or less clouds).
The average number/size of sun spots are large for the period we live in (app. the last 100 years) compared to 'cold' periods.
Unless the activity on earth are able to effect (which I doubt) the number/size of sun spots, there seems to be a corrolated effect between temperature and sun spots, that is totally uncorrelated with human activity.
Normally the high sun spot activity has a cycle of approximately 11 years. But there has been periods, where the average number of sun spots were different from today:
Quote:
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"Early records of sunspots indicate that the Sun went through a period of inactivity in the late 17th century. Very few sunspots were seen on the Sun from about 1645 to 1715 (38 kb JPEG image). Although the observations were not as extensive as in later years, the Sun was in fact well observed during this time and this lack of sunspots is well documented. This period of solar inactivity also corresponds to a climatic period called the "Little Ice Age" when rivers that are normally ice-free froze and snow fields remained year-round at lower altitudes. There is evidence that the Sun has had similar periods of inactivity in the more distant past. The connection between solar activity and terrestrial climate is an area of on-going research.
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Read more about it in this link:
http://science.msfc.nasa.gov/ssl/pad/solar/sunspots.htm
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Insane
[ 08-28-2003, 07:13 AM: Message edited by: InsaneBane ]