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To: Steve Van Doorn

OH and i didn't even mention the changes in the earth's axial tilt (Milankovitch cycles) that occasionally occur in our planet, and that Scientists say have been a major factor in the glacial periods that may have appeared in the graph contained in post 196.


229 posted on 05/25/2006 9:40:14 PM PDT by elvisabel78
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To: elvisabel78
Dr Christopher R Scotese states how he collected the information for the graph (in post 196):
We can determine the past climate of the Earth by mapping the distribution of ancient coals, desert deposits, tropical soils, salt deposits, glacial material, as well as the distribution of plants and animals that are sensitive to climate, such as alligators, palm trees & mangrove swamps.

For more information on this: http://www.scotese.com/climate.htm

”Now look at this graph and note how solar output is decreasingly having an effect in global warming, suggesting that man-caused greenhouse gases such as co2 emissions are the problem:”

How does this suggest that man created this? The first thing I notice in your graph was during WWII when man was at our highest level of pollution the temperature went down. All this graph shows me is there are other forces acting on the earth to create the change in temperature. We know it isn’t CO2 because we can mathematically calculate the amount of temperature gain.

Should we figure out what it is? YES Should we point fingers before we figure that out? You tell me.

I would first suggest we look at other planets in the solar system to see what they might be doing. We do know that Mars and Pluto are warming up in the past few years.

230 posted on 05/25/2006 11:28:59 PM PDT by Steve Van Doorn (*in my best Eric cartman voice* “I love you guys”)
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To: elvisabel78
there are many different cycles some lasting tens of thousands of years long. All the more reason to not look at short term graphs under 1000 years.

It is interesting to note on cycles we found tropical plants in Antarctica.

231 posted on 05/25/2006 11:35:24 PM PDT by Steve Van Doorn (*in my best Eric cartman voice* “I love you guys”)
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