[RockinRight]

How about this theory: The sun's output varies over time. Therefore creating ice ages and warm periods...

[Zuben Elgenubi]

The Earth wobbles in it's rotation and revolution around the sun. Every spinning body not perfectly balanced will wobble.

[1ofmanyfree]

"How about this theory: The sun's output varies over time. Therefore creating ice ages and warm periods..."

Bump!

[edwin hubble]

"How about this theory: The sun's output varies over time. Therefore creating ice ages and warm periods... "

Yes, the largest single component of Earth's climate is solar activity.



Graph of solar activity versus climate

From 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

[trek]

"How about this theory: The sun's output varies over time."

That can't possibly be. Mr. Sun does not have anything to do with capitalism and industrial development in the West. Therefore it can't be the cause of global warming.

[coconutt2000]

How about this theory: The sun's output varies over time. Therefore creating ice ages and warm periods...

If you can link that to Bush, it would be in play. ;-)

[DOGEY]

No, that theory doesn't involve mankind and free market economies.