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Politics : Politics of Energy -- Ignore unavailable to you. Want to Upgrade?

To: Brumar89 who wrote (5121)	2/20/2009 5:06:53 PM
From: RetiredNow	Read Replies (1) \| Respond to of 86356

The data shows that sunspots doesn't account for all of the warming. Most data show that sunspots account for 1/3 of the warming. So what accounts for the other 2/3? Scientists have hypothesized that it is the feedback loops from GHGs. It's a good hypothesis too, because if you look at ice core data going back 800,000 years, it shows that temperature increases that lead to new warming phases, preceded CO2 increases, but the CO2 increases always accelerated during those warming periods. So theory that solar cycles cause the initial warming and that natural feedback loops cause the rest during a warming period makes alot of sense and would fit both the solar cycle data, as well as the ice core data. So the question I have is whether we can rely on Earth's natural processes to continue to cycle in and out of ice ages, absorbing excess GHGs as part of the natural cycle, or has human contribution to those GHGs created an anomolous event that is jeopardizing the natural cycle? That is what our science should focus on. Other questions our scientists should answer are as follows: * What are the tolerance ranges of Earth's natural cycles? * What amount of external contribution could create an out of control feedback mechanism that takes us outside of those tolerance ranges? * And finally, what are the tolerance ranges within which human life can be supported, along with all the food chain that needs to survive to support human life?